Graco seat kit for Husky series 1050 647035 air operated double diaphragm pump.  Santoprene™ seat. 
 Graco's Husky™ 1050 series air-operated double diaphragm pump features a stall-free, low pulsation air valve that provides a smooth and rapid changeover. The one-piece center section elimintaes leaks and reduces maintenance.  Husky™ 1050 pumps are available in aluminum, polypropylene, conductive polypropylene, PVDF, hastelloy, and stainless steel housings.   
  Husky™ 1050 is ideal for use with the following materials and applications:    
-  Lubrication 
-  Paint Circulation Pumps 
-  Chemical Transfer 
-  Low and Medium-Viscosity Material Transfer 
-  Pumping 
-  Fluid Transfer 
-  Antifreeze 
-  Detergents 
-  Motor Oil 
-  Hydraulic Fluid 
-  Cutting Oil 
-  Wastewater Transfer