11-Piece Set Of Pressure Washer Coulpers, 3/8" Npt Quick Connect Fittings For ?Premium No Leak?3/8 Quick Connect Fittings are made of high-quality stainless steel,durable and sturdy,resistant to breakage and deformation.And M22-14mm Pressure Washer Adapters are made of solid brass with rustproof coating,which is much thicker and heavier,each part is firmly connected and does not leak. ?Easy Connection?Our 3/8 pressure washer adapters feature a quick-connect design, which not only help you to install and dismantle more rapidly but also ensure that each attachment lasts longer as water won't get trapped in the connectors. ?Hard and Sturdy?Working Pressure is up to 5,000 PSI.Durable and long-lasting,they will make your cleaning work easier and faster. ?Wide Application?These adapters are not only compatible with various 3/8 cleaning equipment but also with M22-14mm pressure cleaning hoses and pumps.The 1/4 NPT thread also allows connection to pressure washer drain jetter,enabling you to clean not only surfaces but also drainage channels,meeting your everyday cleaning needs. ?Package Include?:2 * 3/8" NPT Female to 3/8" PLUG, 2 * 3/8" NPT Female to 3/8" QC, 2 * 3/8" NPT Male to 3/8" PLUG, 2 * 3/8" NPT Male to 3/8" QC, 1 * M22-14mm Female to 1/4" NPT Female, 1 * M22-14mm Male to 3/8" NPT Male, and 1 * Sealing Tape. Note: M22-14mm female fitting has 14mm inside plug, if pressure washer needs 15mm, it will cause leakage. Please verify you have an M22-14mm hose prior to purchasing.