Fits: Koken/Takara Belmont and Marble Products Shampoo Bowls / The most advanced single control faucet made / CHROME Faucet Handle / Push Handle back to Turn On Pull Handle Forward to Turn Off / Push back for exact pressure desired / Dial the temperature you like left for HOT right for Cold / Turn water on or off without resetting / The model 550 fixture has only one moving part / Fixture Opening in Bowl must be a Minimum of 1 3/4 with a Maximum of 2 inch to accommodate this fixture / Meets ASME A112.18.1 / Flow Rate is 3.5 Gallons per minute / Note the Flow Rate is dependent upon the Main Supply Line and the water presure to your building / Building supply line should be any where fron 1 inch Dia. to 1.5 inch Dia.