Graco DB4311 Husky 1590 Series Air Operated Double Diaphragm Pump, Model 1590S-PA01AS1SSPTPTPT. 1.5" NPTF Connections, 100 GPM Maximum Flow. Stainless Steel Fluid Section, Aluminum Center Section, Stainless Steel Fluid Cover, Aluminum Air Valve / 316SS Seats / PTFE O-Rings, PTFE Balls, PTFE/Polychloroprene Diaphragms.
Repair and maintenance parts for the DB4311. Check the parts list below and order genuine GRACO repair parts from PumpCatalog.
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