KES Z504CLF-BK RO Faucet Reviews

Coming in in a matt black finish, this KES Z504CLF-BK is simple RO faucet designed to dispense water without much bells and whistles.

The whole faucet is 11 9/6 inch tall while the spout alone is 8 25/64 inch tall with 5 5/8 inch reach. It basically towers over other basic sink faucets. It sits up high such that it doesn’t come in the way when doing dishes or when the sink is full of dishes.  

You can as well rotate the spout out of your way in case you are washing larger items. It can swivel 360 degrees and the handle features a ceramic disc cartridge which guarantees a leak-free performance throughout the life of the faucet.

You will have no difficulties installing this faucet. It comes with the ¼” and 3/8” quick connectors, Teflon tape, and deck-mounting hardware. It will fit a maximum of 1 3/8” thick countertop.

The whole unit is a real lead-free stainless steel. It’s strong, rustproof and anti-corrosion. It’s a faucet that can no doubt serve you for many years without any problems or leakage.

Price & Rating

ProductKES Z504CLF-BK RO Faucet Reviews
Rating5 out of 5 stars (More than 6 reviews)
Recommended price3 USD (Check the latest price at

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Metpure RO-FW148 RO Faucet Reviews

The Metpure RO-FW148 RO faucet has a nice, cool and calm Venetian bronze finish but it’s as well built for long term durability and functionality.

The handle features a high quality ceramic disc lever which functions smoothly making it easy to control the flow of the water.

The spout is about 8 ½” tall, so it will fit any kitchen sink very well and provide enough room to carry out several activities within the sink without it being on the way.

Metpure RO-FW148 has a goose-neck design hence there’s no splash. The flows out in a smooth stream plus you can swivel the spout in any angle or direction you want.  

Now setting this faucet up has been made quite easier by the manufacturer as they have included all the hardware from the gasket seal, lock washer, escutcheon, lock nut, tube insert, ¼” tube nut, and tube sleeve.

On top of all these, Metpure has also included a free faucet wrench in the package which is a very convenient and handy addition that makes it a lot easier to secure the faucet to the counter.

The stem requires a minimum of ½” countertop hole and 3” shank to ensure correct and easy installation under the sink. If your system works with only 3/8” tube, then you will need to get a universal quick-connect adapter as it has only hardware for a ¼” tubing.

Once you have the right adapter, the installation is a breeze. The entire unit is made of lead-free solid brass which ensures its durability and lasting finish. It’s an attractive finish that will fit in well with any modern kitchen sink décor.

Price & Rating

ProductMetpure RO-FW148 RO Faucet Reviews
Rating4.6 out of 5 stars (More than 173 reviews)
Recommended price45.99 USD (Check the latest price at

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Watts Premier 116001 Air Gap RO Faucet Reviews

The Watts 116001 is a faucet designed for functional ease and durability. It’s a standard air gap RO faucet and one of the best models out there.

The faucet features 3 lines with two of them, the wastewater in (red) and wastewater out (black) line passing through the air gap, already attached to their respective connections.

The third one is the processed water delivery tube (blue) which you have to attach to the threaded main shaft once the faucet is in place.

The air gap system of this faucet works flawlessly, so no backflow of drain water into the RO system.

The handle features a Touch ‘N Flow spring-loaded design which facilitates easy one-touch water dispensing. Even much better, it gives you three different ways to control the water.

Dispense continuous flow water, you simply push the lever up, to fill up a glasses, you simply press and hold the lever to avoid wasting the water and finally to stop any water flow, you only to return the lever to the central position.

In addition to that, the stem also rotates 360 degrees and you can install the handle in the side, front, or rear. The package includes all the necessary hardware needed to mount the faucet including the three-piece compression fitting for attaching the processed water line.

Watts 116001 meets all US plumbing codes for reverse osmosis systems. It uses ¼” supply tube with the wastewater in drain line being a ¼” tube and the wastewater out drain line being a 3/8” tube. This faucet will as well need access to a drain connection.

The quality of the entire faucet and its other parts is pretty good. It’s made of brushed nickel and comes in multiple colors including white, chrome, brushed nickel, and oil-rubbed bronze. So, you can the color that matches nicely with your kitchen sink.

Price & Rating

ProductWatts Premier 116001 Air Gap RO Faucet Reviews
BrandWatts Premier
Rating3.8 out of 5 stars (More than 357 reviews)
Recommended price35.80 USD (Check the latest price at

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Watts Premier WP116187 Air Gap RO Faucet Reviews

This 10¾ inches Watts Premier WP116187 air gap faucet is a tough but attractive piece with its stylish curved design.  It’s a sturdy top-performing faucet ideal for all under-sink RO systems.

It dispenses water using a variable flow lever which allows you to draw the amount of water you want easily. With only a downward push of the lever, the faucet gets to dispense water and locks open when you pull the lever up.

The spout equally swivels 360 degrees and the whole piece is an easy to install RO faucet. It comes with all the three tubes required for the air gap faucet system connection.

The tubes are all of standard size. They include a ¼ inch blue tube for pure water connection, ¼” inch red tube for the air gap connection to the faucet, and another 3/8” black tube for connecting to the sink drain.

Like all the other air gap faucets, Watts Premier WP116187 too will need access to a drain connection and it does conform to all plumbing codes. 

Now the best part about this faucet is that it features a monitor design which means it will alert you when it’s the right time to change the filters.

The monitor works based on a timer system rather than the quality of the water coming from the filters. It keeps track of the amount of time that the faucet has been in the on position.

Therefore, if you set the timer on the monitor for around 6 months for each filter change, then when the time to change the filters reaches, the faucet will alert you via a blinking red light when it’s dispensing water. The light blinks blue when the filters are good.

Aside from being quite functional and convenient, the Watts Premier WP116187 air gap faucet has a stylish look too with a brushed-nickel finish that would look good with any sink. The quality of the faucet is great as well. It’s strong and scratch/rust-resistant.

Price & Rating

ProductWatts Premier WP116187 Air Gap RO Faucet Reviews
BrandWatts Premier
Rating3.2 out of 5 stars (More than 6 reviews)
Recommended price87.07 USD (Check the latest price at

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Kingston Brass KSAG8198DL Air Gap RO Faucet Reviews

The Kingston Brass KSAG8198DL is a heavy-bodied RO faucet that’s designed to be both durable and functional. It’s a strong faucet that’s bound to deliver years of trouble-free service.

The unit comes with a complete air gap system to ensure no contaminated water would be backing up into the RO system. It is compatible with all under the sink RO filtration systems that work with air gap RO faucets.

Operating the faucet has been made easier too as it features a single lever handle with a ¼ turn on/off control mechanism which is definitely convenient since you have to worry whether you turned or didn’t turn the knob hard enough.

The spout can rotate a full 360 degrees plus the drip-free ceramic disc cartridge system ensures that no leakage of water is going to take place while using the faucet.

It’s a deck mount air gap faucet with about 7-3/16” of spout clearance and 5-3/4” spout reach.  You will need around 1 ½” inch opening if you are to install it on the kitchen counter.

Overall, the faucet has a solid brass construction which is one of the most durable materials used in plumbing. Therefore, you are pretty much guaranteed a longer lifespan.

Kingston Brass also offers the KSAG8198DL RO faucet in a wide array of finishes from brushed nickel to antique brass to matte black to polished brass.

You have a good number of options to pick from and ensure your kitchen look its best. None of the finishes tarnishes or collects scratches easily, most importantly, they won’t corrode.

Price & Rating

ProductKingston Brass KSAG8198DL Air Gap RO Faucet Reviews
BrandKingston Brass
Rating4.3 out of 5 stars (More than 20 reviews)
Recommended price99.95 USD (Check the latest price at

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