VAPSINT&Acirc; Best Commercial Single Handle One Hole 360 Degree Turn Stainless Steel Reverse Osmosis Drinking Water Filter Purifier Kitchen Faucet, Easy Installation Brushed Nickel Sink Faucets Finished 1. VAPSINT Kitchen Faucet Drinking Water Filters Reduce More Contaminants at the Best Value 2. Kitchen Faucet Ideal upgrade for undercounter water filters and reverse osmosis systems 3.This Kitchen Faucet High performance pre-filter reduces rust, sediment and silt and reduces clogging. 4.This Kitchen Faucet Fit 1/2" D to 1-1/4" D mounting hole, using 1/2" hose connectors & 1/4" supply tube 5.This Kitchen Faucet is 360 degree swiveling and single handle control, easy to adjust the water.