Replace the water filter every 3 months or when the water filter becomes discolored to prevent reduced water flow to the system. PM log included. WARNING: Incoming water supply line pressure to the Scaler must be 25 psi (172 kPa) to 60 psi (414 kPa). Water supply line must be shut off or disconnected when Scaler is not in use. Fits: Water Hose Includes: (3 pcs) Disc Filter (Water) (RPI Part #DSF005) (2 pcs) Sleeve Clamp (RPI Part #ADC035) (1 pc) Luer Lock (Male x 5/32" Barb) (RPI Part #RPF907) (1 pc) Luer Lock (Female x 5/32" Barb) (RPI Part #RPF908) Non-Latex A