Hayward Check Valve, 4 in, Single, Inline Wafer, CPVC, Flange x Flange - WCV2400VH Nominal Size-30" X 1.25" They're used on standardized components

They're used on standardized components common to all types of toilets such as toilet seats

Cleanroom swabs are laundered to be clean and pure before use

Bradley 219-035A Shell- Ns Circ Replacement Part

Connection Type: MIPT

Hayward Check Valve, 4 in, Single, Inline Wafer, CPVC, Flange x Flange - WCV2400VH Nominal Size-30" X 1.25" They're used on standardized componentsItem Check Valves: Check Valve; Flow Design: Single; Mechanism and Body Design: Inline Wafer; Body Material Valves: CPVC; Pipe or Tube Size Check Valves: 4 in; Connection Type Check Valves: Flange x Flange; Cracking Pressure Check Valves: 1 psi; Mounting Orientation Check Valves: Horizontal, Vertical; Seal Material Check Valves: FPM; Max. Temp. Valves: 190 Degrees F; Min. Temp. Valves: 40 Degrees F; Max. Water Pressure Valves: 150 psi @ 70 Degrees F;