Small submersible oil-filled pump with epoxy coated cast aluminum housing. For commercial, industrial and home applications including statuary fountains, water displays, air conditioners, machine tool coolants, and many other applications where liquid must be transferred or recirculated. This compact 710 GPH pump features a 1/2" MNPT discharge, 23.1' shut-off head capability, and screened inlet. The 4E series is not recommended for aquariums, swimming pools and fuel oil transfer.