This is everything needed to replace the internals for your older American Aro 3:1 pump along with the service to rebuild it

The primary purpose of this cap is to pressurize the storage tank and reduce evaporation loss and condensation

thus simplifying connectivity immensely

Rigid extension and coupler

14 strokes/gal

Freedom Hydraulics 20FT, 3/8IN ID, 3/8NPTF Male End Fittings, Heavy Duty Rubber Hose. 20,000 PSI Burst Rating. – H96620 Bung Adapter This is everything needed to20 ft 3 8 ID 3 8 NPTF Male End Fittings Heavy Duty Rubber Hose 20,000 psi Burst Rating Categories: 3 8" Hoses, Hoses Model # H96620 Hose I. D. (in.) 3 8 Hose End Fittings 3 8 18 NPTF Operating Pressure (psi) 10,000 Hose Length (ft.) 20