{"product_id":"mckillans-3-8-npt-female-automatic-quick-connect-couplers-stainless-steel-viton-o-rings-2-pack","title":"McKillans 3\/8\" NPT Female Automatic Quick Connect Couplers - Stainless Steel, Viton O-Rings, 2-Pack","description":"\u003cp\u003e\u003cstrong\u003eThese are stainless-steel, push-to-connect 3\/8\" NPT female automatic quick connect couplers designed to convert NPT pressure-washer hoses into fast, one-handed connections.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eReplace threaded hookups with an automatic quick-connect system that locks on contact and resists corrosion for dependable, leak-minimizing performance. The McKillans kit contains two machined stainless-steel 3\/8\" NPT female automatic couplers built with upgraded Viton O-rings and engineered for smooth, long-lasting operation on compatible NPT pressure-washer hoses.\u003c\/p\u003e\n\n\u003ch3\u003eWill these fittings work with my pressure washer hose?\u003c\/h3\u003e\n\n\u003cp\u003eIf your hose uses a 3\/8\" NPT threaded connection, these couplers will fit. They do not adapt to M22, 14mm, or 1\/4\" quick-connect accessories, so confirm the thread standard before ordering to avoid incompatibility.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFits only 3\/8\" NPT pipe thread—verify thread size on your hose or wand.\u003c\/li\u003e\n  \u003cli\u003eNot compatible with M22 or 14mm hose connections.\u003c\/li\u003e\n  \u003cli\u003eDoes not fit 1\/4\" quick-connect spray tips or foam cannons.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I attach and detach these automatic couplers?\u003c\/h3\u003e\n\n\u003cp\u003eAttachment is simple: push the male plug into the coupler until it seats and locks automatically. To release, pull back the sleeve as you would with standard push-to-connect designs; the self-locking mechanism enables quick one-handed swaps without tools.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003ePush-to-connect design enables fast, tool-free connections.\u003c\/li\u003e\n  \u003cli\u003eSelf-locking mechanism keeps the joint secure during use.\u003c\/li\u003e\n  \u003cli\u003eSleeve release allows quick separation when needed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and seals are used to ensure reliability?\u003c\/h3\u003e\n\n\u003cp\u003eEach coupling is precision-machined from stainless steel for enhanced corrosion resistance and a smooth mating surface that reduces wear. The O-rings are made from Viton, chosen for its superior resistance to chemicals and high temperatures compared with common elastomers.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eStainless-steel bodies resist rust and provide sturdy, long-term service.\u003c\/li\u003e\n  \u003cli\u003eViton O-rings improve leak resistance and longevity under stress.\u003c\/li\u003e\n  \u003cli\u003eMachined surfaces minimize friction for consistent operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat comes in the kit and is there warranty coverage?\u003c\/h3\u003e\n\n\u003cp\u003eThe package includes two 3\/8\" NPT female automatic couplers—one for each end of an NPT hose you want to convert. McKillans backs these fittings with a one-year residential warranty, reflecting a commitment to product quality and customer support.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eKit contents: two 3\/8\" NPT female automatic couplers for hose upgrades.\u003c\/li\u003e\n  \u003cli\u003eSpecification: 3\/8\" NPT female to 3\/8\" quick-connect female interface.\u003c\/li\u003e\n  \u003cli\u003eIncludes a 1-year residential warranty for purchaser peace of mind.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? If you own pressure-washing equipment with 3\/8\" NPT threaded connections and want faster setup, reduced leakage, and a more durable coupling than standard fittings, this McKillans stainless-steel push-to-connect kit is tailored for you. It’s ideal for homeowners, detailing professionals, and anyone who prefers quick, single-handed swaps and corrosion-resistant hardware—so long as your hose thread is 3\/8\" NPT. Avoid purchase if your system uses M22, 14mm, or 1\/4\" quick-connect standards.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do these couplers fit M22 or 1\/4\" quick-connect parts?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. They are made specifically for 3\/8\" NPT threads and are not compatible with M22, 14mm, or 1\/4\" quick-connect accessories.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What material are the O-rings made from?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The O-rings are made from Viton for improved chemical and temperature resistance over standard elastomers.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"McKillans","offers":[{"title":"Default Title","offer_id":56831350309204,"sku":"B0DMT9PDQ8","price":51.93,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/mckillans-front-view-3-8-npt-quick-connect.jpg?v=1787014364","url":"https:\/\/gardenluxe.co.uk\/products\/mckillans-3-8-npt-female-automatic-quick-connect-couplers-stainless-steel-viton-o-rings-2-pack","provider":"Gardenluxe Uk","version":"1.0","type":"link"}