Flojet 20381-015 1/2 Inch Barbed X 3/4 Inch Quad Slip Port 30654-1000, 20381-002 Quad Plug In Port Fittings for pumps with a 3/4" port opening that accepts Quick Disconnect (QD) style O-ringed fittings including Aquajet, Aquatec 550 Series, Jabsco (3XXX0), FloJet (04XXX) and ShurFlo. Typical port openings include a Sliding Clip to secure fittings in port. The quick connect port system makes hose removal very easy and allows fast winterizing and system draining. Quad Port Fittings are manufactured with an EPDM Oring. Buna-N O-Rings and Viton O-Rings are available upon request. Same as the Jabsco 30654-1000 Pump Fitting. Factory included with FloJet 04100-512 Quad Diaphragm Pump 115Volt 5.0GPM 45PSI 04100512