GRACO Husky 1590 Aluminum (1-1/2" NPT) Standard Pump, Aluminum Center Section, Polypropylene Seats, Buna-N Balls & Buna-N Diaphragm - (SKU: DB3977) Designed for use with select

Designed for use with select GRACO circulation and supply pumps

Handle with care to avoid damaging the spring or retainer

but set screws are generally made from hardened steel or alloy for durability

Follow manufacturer guidelines for diaphragm and air valve maintenance

and industrial equipment requiring continuous lubrication to flush contaminants and reduce component failures

GRACO Husky 1590 Aluminum (1-1/2" NPT) Standard Pump, Aluminum Center Section, Polypropylene Seats, Buna-N Balls & Buna-N Diaphragm - (SKU: DB3977) Designed for use with selectThe GRACO DB3977 is an air operated double diaphragm pump designed for industrial fluid transfer. It features an aluminum center section, polypropylene seats, Buna N balls, and a Buna N diaphragm, making it suitable for handling a wide range of chemicals and fluids in demanding environments. Key Features: Air Operated Double Diaphragm Pump Husky 1590, 1 1 2" NPT Aluminum center section, polypropylene seats, Buna N balls, Buna N diaphragm Maximum free