National-Spencer, Inc. 1040, Air-operated aluminum double diaphragm pump 1" NPT 37-GPM. 1" Aluminum / Poly Construction Air Operated Double Diaphragm Pump: non-stalling and lube free, Recommended for motor oil, waster oil, and ATF. WARNING! Not suitable for flammable liquid. Its specifications include: Inlet/Outlet: 1" NPT; Max Flow: 37 GPM; Body Construction: Alum/Polypro; Diaphragm: Buna N; Balls: Acetyl; Seats: Aluminum; Not UL Listed; Air Consumption: 40 CFM @ 80 PSI; Bolt Pattern: 4.250" x 8.250"; Height: 14.125" Tall.
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