The advanced filter technology used within these products can greatly improve the taste, smell and appearance of your water, which means your tea, coffee and cold drinks will not only look better but taste better as well. The air gap feature allows the waste stream to be carried up to the faucet base by a 1/4 tube. The price is extremely affordable and the quality is beyond reproach. There are no plastic components and it can withstand up to 120 PSI. The minimum mounting hole required is 1 1/4 diameter. Premium ceramic disc operated, certified lead-free RO drinking water dispensing faucets. 1/4 inch input. Solid metal handle controls the smooth and durable 1/4 turn ceramic disc valve, allowing pure water to pour at any rate you desire. Swivel spout. These high quality faucets are worthy upgrades to consider. The non-air gap design enables water moving faster and easier from the faucet without... This water is carried to the waste pipe which services the kitchen sink via a 3/8 tube. Ceramic Disc 1/4 Turn Tap for use with Reverse Osmosis Water System or other Undersink Water Filters An elegant water filter tap supplied as original equipment with most Vyair Reverse Osmosis Water Filters. A drinking water filter system can provide a simple and effective way to significantly improve the quality of the water you use for drinking and food preparation in the home. This is a simple fitting that screw on to the threaded tap mounting stem to convert the connection to a simple push fit fittings. Reverse Osmosis Faucet Drinking For Reverse Osmosis Systems - Ceramic Disc With Water Tap Designer Series | Contemporary Style NSF Certified Lead-Free This tap is suitable for use with all home water filters utilising 1/4 water pipe. Features Space saving designs Fitting kit supplied No need for a separate housing Innovative, easy to change filter cartridges Suitable for the removal of bad taste and odours Long life cartridge 3 - 6 months (dependant on use and water quality) Install in less than one hour Located in the faucet base is a spill vent that allows the water to drain freely and it also prohibits the waste water from back flowing in a way that could contaminant the potable water. Air gap faucet for use with Rainfresh and other reverse osmosis systems. 1/4" and 3/8" drain tubes pre-attached. In stock Total height: 12 7/8 inches Height from base: 9 7/8 inches Width: 5 inches Drilled hole required 1/2 inch Here the waste stream spills to a small reservoir built into the faucet base.