GRACO Husky 1590 Aluminum (1-1/2" NPT) Standard Pump, Aluminum Center Section, Polypropylene Seats, Buna-N Balls & Buna-N Diaphragm - (SKU: DB3977) Follow manufacturer guidelines for diaphragm

Follow manufacturer guidelines for diaphragm and air valve maintenance

and automatic lubrication systems

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

Designed for use with select GRACO circulation and supply pumps

Viton FX (FKM) material

GRACO Husky 1590 Aluminum (1-1/2" NPT) Standard Pump, Aluminum Center Section, Polypropylene Seats, Buna-N Balls & Buna-N Diaphragm - (SKU: DB3977) Follow manufacturer guidelines for diaphragmThe 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