Amflo C90 Coupler, 1/4" HI FLO/HVLP, 1/4" FNPT, Brass Plated (Pack of 10) Amflo Brass/Steel, HI-FLO, 'V-Style' Air Line Couplers are specifically designed for HVLP situations, such as paint spray guns, abrasive blast cabinets, and high CFM air tools V-Style' couplers can be identified by the single, extra wide, smooth band through the knurled area around the coupler body Heat treated, cast and machined, plated steel construction offers high strength, durability, and corrosion resistance Push to connect feature makes connection simple - just insert a plug into the coupler and push - that's it, you're connected; pull coupler sleeve to release; 300 PSI max pressure V-Style' X 1/4 inch female NPT