Graco D3B977 Husky 307 Series Air Operated Double Diaphragm Pump, Model 307P-PP01AP4PPBNBNPT. 3/8" BSPT Connections, 7.5 GPM Maximum Flow. Polypropylene Fluid Section, Polypropylene Center Section, Polypropylene Fluid Cover, Polypropylene Air Valve / Polypropylene Seats / PTFE O-Rings, Buna-N Balls, Buna-N Diaphragms.
Repair and maintenance parts for the D3B977. Check the parts list below and order genuine GRACO repair parts from PumpCatalog.
View the D3B977 product page