Flojet Industrial G-57 Series Pumps are designed for general commercial and industrial applications. 
These pumps are constructed from a selection of materials for handling a broad range of chemicals. 

Fluids that are allowed for Santoprene materials are potable water, acids, alkaline, soaps, alcohols, and ketones. 
Fluids that are not allowed for Santoprene materials are oils, solvents,soaps with solvents, d-limonene, and aromatic hydrocarbons.

Features:

  • Highest flow rate for any air pump of comparable size
  • Stall-proof design with patented shuttle valve
  • Easy installation with all quick disconnect ports
  • Robust design with durable integral mounting
  • Sanitary design with inset molded diaphragm
  • Leak resistant radial seals, no critical o-ring seals
  • Quiet operation with large exhaust muffler

Specifications :
Diaphragm Pump AOD Air Powered
1/2" Hose Barb Snap-In Ports
5.5GPM Max
Polypropylene
Santoprene Check Valve Seat and Diaphragm
1/4" Hose Barb Straight Brass Air Inlet

Data Sheet    https://www.industrialzone.com/pdf/Flojet_G57.pdf