Jiffy-tite 2000 Series Aluminum Quick Disconnect Fluid Fittings Male AN Plug and Socket Fittings Jiffy-tite''s patented valve technology in both the socket and plug assembly assures a 100% leak-proof seal, and the ribbed collar provides an absolute slip-proof grip. Jiffy-tite''s Quick Connect Fluid Fittings provide minimal flow restriction for virtually any fuel, water or oil system on the market today.