Flojet 20381-704 Kit Ftg 1/2Npt X 3/4Barb
Flojet Snap-In Quad Port Kit, with EPDM O-Ring, 1/2" Qest (Straight) Thread, Straight (pair). The Snap-In Portion of These Fittings Measures 1" Diameter. For 6 GPM or larger pumps only.
This is the same as Jabsco 1877K-3242S