APEC Water WFS-1000 Under-Sink Water Filter Reviews

APEC Water is a reputable manufacturer of water filtration systems with a long history of producing quality products. Their WFS-1000 under sink water filter system does not disappoint either as it’s amongst their top products with much positive reception. 

It’s a basic under sink water filter designed purposely for removing chemical contaminants from the water, especially chlorine. If your water is already good but you just want to refine it and protect yourself against any potential contamination, then this is a nice option to check out.

Filtration Performance

The APEC Water WFS-1000 has 3 filtration stages consisting of a sediment filter and two carbon block filters which together provide a commendable filtration performance.

At the 1st stage is the high-grade 10″ polypropylene sediment filter which extracts as many sediments as possible from the water including dust, rust, silt, and other tiny and major particles in order to protect and maintain the filtering ability of the next stages.

The water then goes through an extruded carbon block filter in the 2nd stage which is typically made up of activated carbon particles fused together into a single block.

This serves as the first point of carbon filtration where a majority of the chlorine, VOCs and other chemical contaminants like pharmaceuticals, pesticides, and herbicides are initially removed from the water. Unwanted tastes, odors, cloudiness and residual sediments are cleared out as well at this stage.

The 3rd stage has the same extruded carbon filter which performs the final refining by further removing the remaining chlorine, odor, tastes, color, cloudiness and other chemicals.

The use of these dual carbon filters significantly boosts the filtration performance of the unit allowing it to get rid of almost all the chlorine, tastes and VOCs from the water, and also organic chemicals.

The mineral composition and alkalinity of the water do not change throughout the filtration process. The result is mineral-rich water that’s clean, looks clear and tastes fresh.

Capacity and Efficiency

APEC has not specified the total gallon rating for this WFS-1000 model but if we have to give an estimate, it will process more than 1,000 gallons of water before needing replacement.  

For a lot of households with regular normal usage, this means it’s likely to last 1 to 2 years provided your water is not highly contaminated. It’s a decent lifespan compared to most similar systems.

Although the unit uses three filtration stages, you won’t notice a big change in the water flow. It has a maximum flow rate of 1.6 gallons per minute, thereby it will filter the water quickly and provide a continuous on-demand supply of clean purified water to your faucet. Furthermore, no water is wasted, so your monthly water cost won’t change much.

Installation and Maintenance

The WFS-1000 comes fully assembled for installation. What’s required is to mount it in the desired location, insert the filter cartridges, and connect the tubing.

The challenging part may be to install the faucet as it’s designed to work with a separate dedicated faucet for dispensing the filtered water.

The package comes with 100% lead-free chrome faucet, hence if there’s no pre-made hole in your kitchen counter, you might have to drill one to install this faucet.

The unit falls in the medium to large size end and as such, it should fit under most standard kitchen cabinets. If it’s small, then you will have to adjust some stuff to create room for it.  

There’s little work to do with regard to maintenance because it’s just replacing the filters at least after every 12 months and it’s equally an easy and quick process.

Now one of the setbacks of this unit is that despite having dual activated carbon filters, it still cannot eliminate chloramine from water which might be a concern for those living in cities that utilize chloramine to treat water instead of chlorine.

According to APEC, the filter will also not remove fluoride, bacteria and heavy metals like lead and arsenic. Total dissolved solids as well pass right through the filters. What this generally means is that it’s not ideal at all for filtering well water.

In conclusion, as long as you are seeking to purify only municipal water that’s treated with chlorine, the APEC WFS-1000 will be a better fit for you. It will serve you for long and deliver the water quality you desire.

Pros

  • Designed for removal of sediments and chemical contaminants
  • Eliminates unpleasant tastes, odors and water cloudiness
  • Doesn’t interfere with essential minerals or water alkalinity
  • Can process more than 1,000 gallons of water before replacement
  • Installation is fairly easy as well as changing the filters
  • Comes with a 1-year limited warranty and a dedicated standard faucet

Cons

  • It’s not able to filter out chloramine, fluoride and heavy metals
  • Not the most compact under sink water filter system

Read moreAPEC Water WFS-1000 Under-Sink Water Filter Reviews

APEC Water CS-2500n Under Sink Water Filter Reviews

Our next under sink water filter is the APEC CS-2500 water filtration system. This is a strong but more basic under sink water filter from APEC Water built to provide dependable filtration at an affordable price. It’s a good starting point for those who are looking for a simple, budget under sink water filter for improving the quality of their city water.

Filtration Performance

The APEC CS-2500 filtration process relies purely on a single filter cartridge for the removal of several different kinds of contaminants commonly found in water supplied from municipal treatment plants.

It utilizes a carbon block filter which may seem like a standard carbon filter but it does offer a respectable contaminant rejection rate. This highly porous medium is able to eliminate up to 97% of chlorine, bad tastes, odors and various other chemicals such as herbicides and pesticides from the water.

The media is also capable of removing 90% of all lead plus other heavy metals while ensuring that essential minerals like calcium and potassium remain in the water. It’s a much ideal filter for dealing with lead or anything chemical that contaminates your water.

Besides that, it’s designed to be bacteriostatic and as such, it will as well remove heterotrophic bacteria and inhibit them from growing or reproducing within the unit which is a big plus in preventing any possibility of further contamination happening inside the filter.

Capacity and Efficiency

Like the APEC WFS-1000, the exact filtration capacity of this APEC CS-2500 model has not been clearly specified but according to APEC, its maximum contaminant reduction capacity is around 5,000 gallons and that should allow the filter to go for up to 12 months before you can change it.

The water flow rate is 1.67 gallons per minute which is good enough to ensure you get filtered water on-demand quickly plus you won’t notice any drop in water pressure when using the filter.

Installation and Maintenance

The best part of this unit aside from its filtration ability is that it offers a trouble-free installation. Using the provided standard 3/8” connector, you screw in the inlet line from the filter directly to your cold water supply valve and then screw in the outlet line to your existing faucet stem.

It’s that easy and you don’t require a separate faucet. The lines will handle pressures of up to 125 psi thanks to the twist connection design and they are likely to leak under high pressure compared to push-in hoses.

This quick twist connection design also enables easy filter replacement which you won’t have to do more frequently as the filter cartridge lasts up to 12 months without change out. The lifespan may vary though depending on the quality of water going into the unit.

Generally, there’s little to worry about this under sink water filter. It’s a basic and economical water filtration system suitable for removing chlorine, heavy metals and a few other contaminants from treated municipal water. Due to its compact size as well as easy installation, it can be a perfect choice for RV owners.

Pros

  • Removes a good number of contaminants
  • Destroys and prevents bacterial build-up
  • Essential minerals remain in the filtered water
  •  Decent flow rate and filter lifespan
  • Easy to install and to replace the filter cartridge

Cons

  • Does not remove fluoride
  • Cannot be used with well water

Read moreAPEC Water CS-2500n Under Sink Water Filter Reviews

iSpring US31 3-Stage Under Sink Water Filter Reviews

Taking the 7th spot on our list is the iSpring US31 under sink water filtration system. iSpring is a famous company in the water filtration industry known for producing top-of-the-line water filtration systems particularly reverse osmosis systems and replacement parts.

The company now includes under sink water filters on their long list of products and the US31 is one of their best models that has made a significant mark on the market.

It has been built to the same level of quality we’ve seen in most of iSpring’s systems with an aim to provide a convenient and efficient way to facilitate the supply of clean, healthy water.

Filtration Performance

To start, the iSpring US31 filter system features a more standard design with 3 separate stages of filtration that work to remove a lot of harmful contaminants.

In the 1st stage, the water flows through a universal 10” polypropylene sediment filter where common sediments are cleared out down to 5 microns.

It removes sand, dust, rust, dirt and all tiny particles which not only improves the purity of water but also helps protect and extend the life of the system itself.

The 2nd stage contains 5-micron CTO carbon and GAC filter which is a combination that effectively removes chlorine, chloramine VOCs, and many more common chemicals that contaminate the water and cause colors, cloudiness, bad tastes, and odors. These two filters also help reduce the number of heavy metals like lead and arsenic present in the water.

From there, the water goes through another CTO carbon filter in the 3rd stage where the remaining chlorine, chloramine, VOCs and other chemicals, as well as heavy metals, are further extracted from the water thereby improving its taste, smell and clarity.

These three stages will remove all these contaminants without losing the minerals in the water as is the case with RO systems.

The filter is equally designed to control and discourage bacteria and parasites from developing in the water, thereby if bacterial contamination is of concern, then you are guaranteed that the filtered water produced at the faucet will be of great quality.

Capacity and Efficiency

This US31 model from iSpring is rated to provide up to 2000 gallons of water which is sufficient capacity to give you almost one year of service before you can replace the filter cartridges.

Basically, depending on the usage and water quality, you will have to change the filter cartridges every 6 to 12 months. The higher the usage and level of contamination, the shorter the lifespan will be.

The flow rate, on the other hand, can reach up to 1 gallon per minute again depending on your source water pressure.  It may not be that high, but it’s just fast enough to ensure you constantly have access to clean water on demand straight from your tap.

Installation and Maintenance

Installing and maintaining the US31 is a somewhat simple task although you may have to drill an extra hole into your countertop since it uses a separate faucet included in the kit.

If you are handy or have some basic DIY skills, it could take less than 30 minutes to set it up and the kit has everything you need including the feed water adapter, tubes, fittings adapter, a wrench, and a clear and easy-to-follow installation manual.

All three filter cartridges require replacing every 6 to 12 months and as we mentioned above, this will depend on your usage and the level of contamination of your water.

Changing the filter is as easy as installing them the first time and even much better, the 1st stage filter has a clear see-through housing to enable an easier visual inspection of the cartridge so that you can always replace it at the right time.

Moreover, the system can handle a maximum pressure of 90 psi, so the fittings are not going to blow apart and come out with the standard 60 psi municipal water pressure.

Considering that the 3-stage filtration process is highly effective in removing different contaminants and the capacity is reasonably large, the iSpring US31 is a unit that we would recommend to anyone looking for quality and reliability.

Pros

  • Will effectively remove sediment, chlorine, and several different contaminants
  • Keeps essential minerals and prevents bacteria from thriving in the water
  • Relatively high capacity of up to 2,000 gallons of water
  • Simple DIY installation and maintenance process
  • Has a clear see-through 1st stage housing for an easy visible inspection
  • Comes with a durable, brushed nickel all-metal dedicated faucet
  • Backed by a 1-year limited warranty

Cons

  • The flow rate is a bit low at 1 GPM
  • Meant for use with only municipal water

Read moreiSpring US31 3-Stage Under Sink Water Filter Reviews

Aquasana 2-Stage Under Sink Water Filter Reviews

Aquasana is another reputable brand that continues to enjoy a lot of popularity in the water filtration business and they are well known for their eco-friendly filtering options.

The Aquasana AQ-5200 is amongst the top performing under sink water filter systems on the market and the main reason behind this is the fact it’s one of the few models that have the most contaminant certifications. Here is an outlook of its major highlights and setbacks.

Filtration Performance

The AQ-5200 utilizes Aquasana’s panted and NSF certified Claryum filtration technology which is a 2-stage high-performance filtration process designed to remove over 60 common water contaminants.

In fact, it’s only a tiny handful of filters on the market that use this filtration technology which consists of activated carbon media, a catalytic carbon filter media, and ion exchange.

The activated carbon filtration adsorbs organic chemicals in the water such as VOCs, MTB, herbicides, and pesticides as well as pharmaceuticals like ibuprofen and estrone.

From there, the water goes through a catalytic carbon filter where it isolates and eliminates chlorine and chloramines thereby improving the taste and color of the water.

The next filtration phase involves an Ion exchange which takes care of the heavy metals like mercury, lead, and arsenic. The system is also equipped with absolute sub-micron mechanical filtration (ASMF) which helps capture asbestos plus chlorine-resistant cysts such as giardia and cryptosporidium.

The use of these different filtration technologies significantly enhances the unit’s performance compared to its competitors allowing it to remove over 97% of the contaminants in the water.

In addition to this, the AQ-5200 is certified as well to remove PFPA and PFOS, and the filtration process itself is selective hence retains the naturally beneficial minerals resulting in filtered water that’s cleaner, healthy and tastes great.

Capacity and Efficiency

Filtration capacity is the area that the Aquasana AQ-5200 slightly falls short because it’s only capable of processing up to 500 gallons of water before requiring changing.

This is the lowest capacity on our list, but if you use the filter to process around 2 to 3 gallons every day, it will likely last up to 6 months which fairly good.

Water flow rate is another area that this unit doesn’t really do well in as it can deliver just 0.5 gallons per minute. This only translates to a 25% increase in the flow rate compared to normal tap and as such, you may experience a slightly slow pour but the unit is efficient.

No water is wasted and the unit can handle a maximum working pressure of 80 psi and a minimum working pressure of 20 psi.

Installation and Maintenance

You will need no plumber to set up this AQ-5200 system if you are a handy person because it’s designed for easy DIY installation with everything you require to get the job done included in the package. It comes with a separate dedicated faucet, so you will have to do some drilling if you don’t already have an extra mounting hole drilled into your sink.

Changing the filters is a snap too. No disconnecting hoses or water lines. All it takes is a simple twist to unscrew the filter housing, remove the old cartridge and insert the new one.

You only toss the filter cartridge and keep the housing which makes the replacement a bit less costly considering that the filter lasts up to 6 months.

The amazing thing about this Aquasana unit is that it’s fitted with a performance indicator which is a smart-tech system that will show the efficiency of the filter and notify you when the filter requires to be changed.

Therefore, no need to keep checking or guessing when to replace the old filters which is a big plus in terms of ensuring the system remains effective throughout in filtering out contaminants.

To sum it all, while the capacity and flow rate are on the lower end, the AQ-5200 is a solid under sink water filter system with a reliable filtration technology.

The low capacity may be a deal-breaker for some but if your regular water usage is not that high and you want a unit with great filtration power that will deliver healthy clean water, then this is an option you can absolutely consider.

Pros

  • Removes over 60 different contaminants
  • Retains the naturally beneficial minerals
  • Installation and filter replacement is easy
  • Alerts you when it’s time for replacing the filters
  • Comes with a 1-year warranty and 90-day guarantee

Cons

  • Water flow is slower than most other filters
  • Low filtration capacity at 500 gallons
  • Suitable for only water with adequate disinfection like municipal water

Read moreAquasana 2-Stage Under Sink Water Filter Reviews

Aquasana AQ-5300 Under Sink Water Filter Reviews

The Aquasana AQ-5300+ also known as 5300 Max Flow is much similar to the Aquasana AQ-5300 model but with a slightly larger capacity and faster flow rate.

However, the two models feature 3 filtration stages rather than the 2-stage process of the AQ-5200 model. In other words, the AQ-5300+ is a robust and super effective system as you are going to see below.

Filtration Performance

Like the AQ-5200 above, the Aquasana AQ-5300+ model utilizes Claryum filtration technology but with an additional stage to make it a 3-stage filtration system.

Stage 1 of the system is fitted with a 20-micron sediment pre-filter which traps silt, dirt, rust and other visible sediments to prevent the following stages from clogging too quickly.

It’s a feature that often misses in most under sink water filters yet it’s really essential particularly in areas where the sediment and silt levels in the water are higher than normal.

Stage 2 and 3 consist of Aquasana’s Claryum filtration technology which is made up of activated carbon filter, catalytic carbon filter, ion exchange, and sub-micron filter.

At first, the water flows through the granular activated carbon filter where a significant amount of both organic and inorganic chemical contaminants that include chlorine herbicides, pesticides, pharmaceuticals and VOCs are removed from it along with unpleasant tastes and odor caused by these chemicals.

From there, the water goes through the catalytic carbon filtration media which is a more powerful carbon filter that clears out 99% of the chlorine and remaining chemical contaminants in the water. It also totally reduces chloramine present in the water, something that most under sink water filters cannot.

After that, the water passes through an Ion exchange filter which features a series of resin beads with large surface area and they work effectively to extract heavy metals like mercury and lead plus other micropollutants that the carbon filters fail to catch.

At the last stage of the filtration process which is the 3rd stage, we have the sub-micron filter which clears out the remaining particles and contaminants from the water down to 0.35 microns. It will capture asbestos, chlorine-resistant cysts like cryptosporidium and giardia, and any other impurities that the earlier two stages couldn’t remove.

These three stages together will eliminate up to 99% of 77 different kinds of contaminants but leave behind healthy minerals to give you a clean, fresh and natural-tasting water.

They will also not remove other total dissolved solids (TDS) and the only microbes they can remove are cysts hence it’s not that effective for bacterial removal which simply means you should only use the unit to filter treated water that’s microbiologically safe. It’s certainly not recommended for use with well water which doesn’t contain chlorine for disinfection.

Capacity and Efficiency

While the AQ-5200 has a filtration capacity of 500 gallons and the AQ-5300 600 gallon, this AQ-5300+ model offers up to 800 gallons before a change of filters is needed. 

This slight improvement in the total amount of water it can process is mainly brought about by the larger cartridges it uses and it will allow you to utilize the unit for up to 6 to 8 months before replacing the filters.

The flow rate is equally a bit faster than that of the previous two models. They delivered not more than 0.5 gallons per minute yet the AQ-5300+ provides 0.72 GPM which is not much change but it’s significant enough to ensure you get slightly faster water flow from the faucet.

Installation and Maintenance

Hooking up this Aquasana unit should not pose a problem if you have some basic DIY skills. The installation manual explains the entire process step by step and all the necessary parts are included with the first set of filters already installed in the system.

It won’t take more than an hour to set it up but like the AQ-5200, it comes with its own dedicated faucet that you need to install, so some drilling might be involved.

No much maintenance is required other than occasionally changing the filters at least after every 6 months and cleaning the exterior of the unit.

Another good thing is that this system too comes with a battery-operated alarm/indicator which will beep an audible alert and flash red to remind you when filter replacement is needed.

You can even link the system to your phone via Bluetooth to receive the alerts on your phone. There’s an app from the manufacturer that you can download and install for free, and keep track of the number of gallons of water have been processed. 

Unfortunately, this app is only available for iOS devices. The indicator also uses a battery that will require changing with every filter replacement which translates to some additional costs although not very much to cause concern.

From all these wonderful features to the high filtration performance, it’s safe to say that the Aquasana AQ-5300+ is an under sink water filter that’s worth every penny.

For those that prefer Aquasana products and the AQ-5200 model didn’t win them over, this is an alternative you might want to check out.

Pros

  • Highly effective filtration process for an under sink water filter
  • Removes 99% of chlorine and chloramines, and keeps essential minerals
  • Decent filtration capacity of up to 800 gallons
  • Fairly easy DIY installation and filter replacement
  • Monitors filter life and alert you when filter replacement is needed
  • Can be linked to a phone via Bluetooth for easy filter life monitoring
  • Comes with a 2-year warranty and 90-day satisfaction guarantee

Cons

  • Water flow rate is somewhat low at 0.72 GPM
  • Does not remove fluoride or treat bacterial contamination

Read moreAquasana AQ-5300 Under Sink Water Filter Reviews