Victaulic QuickVic 107V Rigid Grooved Coupling, EHP EPDM Gasket Size:4" this pump is designed for 0001535 this pump is designed for flooded suction systems lightweight A380 die cast aluminum Air to Close Operation Provides responsive pneumatic control of water flow to spray system circuits Reduced Water Hammer Controlled valve closure helps minimize hydraulic shock to the pump and plumbing system Internal Closing Spring Keeps the valve seated under static water pressure when the truck is shut down and control air is depleted Serviceable Diaphragm Assembly Replaceable urethane seal and internal components simplify maintenance and extend service life 3" Grooved Connections Allows fast installation and servicing with compatible grooved couplings Flexible Installation Suitable for inline control valve or end of line spray valve configurations Made in USA Designed and manufactured in the United States Specifications Victaulic QuickVic™ Style 107V rigid grooved couplings provide a rigid mechanical pipe joint for compatible grooved piping systems and other variant specific data are maintained at the size variant level