{"product_id":"pneumatic-c-type-quick-release-coupler-set-self-locking-air-hose-fitting","title":"Pneumatic C-Type Quick Release Coupler Set — Self-Locking Air Hose Fitting Pair","description":"\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I choose the right size coupler for my air hose?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Match the coupler size to your hose's outer diameter (OD). Our variants are labeled 20, 30, and 40 — corresponding to hose OD ranges of approximately 20mm (≈3\/4\\u2033), 30mm (≈1-3\/16\\u2033), and 40mm (≈1-9\/16\\u2033). When in doubt, measure your hose OD with calipers before ordering. Check the variant options above or contact us to confirm compatibility.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What do the letter codes in the variant names mean (SP, SH, SF, SM)?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The letters indicate the socket and plug style in each pair. 'S' stands for Socket and 'P' for Plug. The second letter denotes the body style: P = push-type, H = hex-body, F = flat-face, M = male-thread style. Each listing includes one matched socket + plug pair (2 pcs total).\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How strong is the self-locking mechanism — will it hold under pressure?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"C-type pneumatic couplers generally support working pressures of up to approximately 150 PSI (≈10 bar) in typical shop-air applications. The self-locking collar engages automatically on insertion and requires a deliberate sleeve retraction to disconnect, preventing accidental disconnection under load. For exact pressure ratings, see the variant options or contact us to confirm.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can these fittings be used outdoors or in humid environments?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"These couplers are generally suitable for indoor workshop and light industrial use. For prolonged outdoor or high-humidity exposure, periodic lubrication of the locking sleeve is recommended to maintain smooth operation. If corrosion resistance is a primary concern, contact us to confirm the finish specification for your chosen variant.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are these compatible with standard air compressors and pneumatic tools sold in the US?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"C-type (also called Industrial-type or I\/M-type in some regions) couplers are among the most widely used pneumatic fitting standards in North American workshops. They are generally compatible with air compressors, impact wrenches, nail guns, spray guns, and blow guns that accept C-type connections. Always verify the coupler style your tools require before purchasing.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Does the set include both the socket and the plug?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. Each listing is sold as 1 Pair (2 Pcs) — one socket and one matching plug — so you have everything needed to create a complete quick-connect air line junction right out of the box.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I connect and disconnect the coupler safely?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"To connect: push the plug firmly into the socket until you hear\/feel a click — the self-locking collar engages automatically. To disconnect: depressurize the line first, then retract the outer sleeve collar on the socket while pulling the plug free. Never attempt to disconnect under full line pressure.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\n\u003cdiv class=\"hdiy-desc\"\u003e\n\n  \u003c!-- ① OVERVIEW --\u003e\n  \u003cdiv class=\"hdiy-overview\"\u003e\n    \u003ch2\u003ePneumatic C-Type Quick Release Coupler Set — Fast, Secure Air Hose Connections for Your Workshop\u003c\/h2\u003e\n    \u003cp\u003eIf you've ever wrestled with a stuck air hose fitting mid-project — or had a line pop loose at the worst moment — you know how much a reliable quick-connect coupler matters. Whether you're a DIY enthusiast setting up a home garage compressor or a professional running multiple pneumatic tools on a shop floor, a secure and repeatable connection point is non-negotiable.\u003c\/p\u003e\n    \u003cp\u003eEach set includes one matched socket and one plug (1 Pair \/ 2 Pcs), machined to C-type pneumatic coupler standards. Variants are available in three hose OD sizes — 20mm (≈3\/4\"), 30mm (≈1-3\/16\"), and 40mm (≈1-9\/16\") — and across four body styles (SP, SH, SF, SM) to suit different tool and compressor port configurations. The self-locking collar engages on insertion and requires a deliberate sleeve retraction to release, keeping your air line locked in place during operation.\u003c\/p\u003e\n    \u003cp\u003eThese quick release air hose fittings are well-suited for connecting air compressors to impact wrenches, pneumatic nail guns, spray guns, and blow guns in home workshops, auto repair bays, and light industrial settings. The C-type standard is one of the most widely adopted pneumatic coupling formats in North American shops, making these a practical addition to any air tool setup.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- ② COMPATIBILITY BAR --\u003e\n  \u003cdiv class=\"hdiy-compat\"\u003e\n    \u003cspan class=\"hdiy-compat-icon\"\u003e🔵\u003c\/span\u003e\n    \u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for C-type (Industrial\/IM-type) pneumatic systems. Fits standard air compressor outlets and pneumatic tools accepting C-type quick-connect fittings. Verify your tool's coupler standard before ordering.\n  \u003c\/div\u003e\n\n  \u003c!-- ③ KEY FEATURES --\u003e\n  \u003ch2\u003e✅ Key Features of These C-Type Pneumatic Quick Release Coupler Sets\u003c\/h2\u003e\n  \u003cul class=\"hdiy-features\"\u003e\n    \u003cli\u003e\n      \u003cspan class=\"hdiy-icon\"\u003e🔒\u003c\/span\u003e\n      \u003cspan\u003e\u003cstrong\u003eSelf-Locking Collar Design\u003c\/strong\u003e — The sleeve locks automatically on plug insertion, preventing accidental disconnection during pressurized operation — no threading, no clamps required.\u003c\/span\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003cspan class=\"hdiy-icon\"\u003e⚡\u003c\/span\u003e\n      \u003cspan\u003e\u003cstrong\u003eOne-Hand Quick Connect \u0026amp; Release\u003c\/strong\u003e — Retract the outer sleeve to disconnect in seconds, making tool swaps on a busy air line fast and frustration-free.\u003c\/span\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\n      \u003cspan\u003e\u003cstrong\u003eThree Hose OD Sizes Available\u003c\/strong\u003e — Choose from 20mm, 30mm, or 40mm to match your existing air hose outer diameter, with multiple body styles per size for flexible installation.\u003c\/span\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003cspan class=\"hdiy-icon\"\u003e🔧\u003c\/span\u003e\n      \u003cspan\u003e\u003cstrong\u003eMatched Socket + Plug Pair Included\u003c\/strong\u003e — Each set ships as a complete 2-piece pair, so you can establish a full quick-connect junction without sourcing components separately.\u003c\/span\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003cspan class=\"hdiy-icon\"\u003e🏭\u003c\/span\u003e\n      \u003cspan\u003e\u003cstrong\u003eC-Type Industry-Standard Fitting\u003c\/strong\u003e — Compatible with the widely adopted C-type pneumatic coupler standard used across North American workshops, auto shops, and light industrial environments.\u003c\/span\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003cspan class=\"hdiy-icon\"\u003e🔄\u003c\/span\u003e\n      \u003cspan\u003e\u003cstrong\u003eMultiple Body Styles for Different Ports\u003c\/strong\u003e — SP, SH, SF, and SM variants accommodate different compressor outlet and tool inlet configurations, reducing the need for adapters.\u003c\/span\u003e\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003c!-- ④ TECHNICAL SPECIFICATIONS --\u003e\n  \u003ch2\u003e📐 Technical Specifications — C-Type Pneumatic Quick Release Coupler\u003c\/h2\u003e\n  \u003cdiv class=\"hdiy-table-wrap\"\u003e\n    \u003ctable\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003cth\u003eCoupler Standard\u003c\/th\u003e\n\u003ctd\u003eC-Type (Industrial \/ IM-Type)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eAvailable Hose OD Sizes\u003c\/th\u003e\n\u003ctd\u003e20mm (≈3\/4\"), 30mm (≈1-3\/16\"), 40mm (≈1-9\/16\")\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eBody Styles\u003c\/th\u003e\n\u003ctd\u003eSP (Push-type), SH (Hex-body), SF (Flat-face), SM (Male-thread)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eSet Contents\u003c\/th\u003e\n\u003ctd\u003e1 Socket + 1 Plug (2 Pcs per pair)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eConnection Type\u003c\/th\u003e\n\u003ctd\u003eSelf-locking quick release (sleeve retract to disconnect)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eTypical Working Pressure\u003c\/th\u003e\n\u003ctd\u003eUp to approx. 150 PSI (≈10 bar) — see variant options to confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eMaterial \/ Finish\u003c\/th\u003e\n\u003ctd\u003eSee variant options or contact us to confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eThread Standard\u003c\/th\u003e\n\u003ctd\u003eSee variant options or contact us to confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eAir compressors, pneumatic tools, workshop air lines\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003ePacking Quantity\u003c\/th\u003e\n\u003ctd\u003e1 Pair (2 Pcs)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-note\"\u003e\n    \u003cspan class=\"hdiy-note-icon\"\u003e⚠️\u003c\/span\u003e\n    \u003cstrong\u003eNote:\u003c\/strong\u003e Material finish and thread specifications vary by variant. Please confirm your hose OD and required body style before ordering, or contact us — we're happy to help you find the right match.\n  \u003c\/div\u003e\n\n  \u003c!-- ⑤ FAQ --\u003e\n  \u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n  \u003cdiv class=\"hdiy-faq\"\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow do I choose the right size coupler for my air hose?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eMatch the coupler size to your hose's outer diameter (OD). Our variants are labeled 20, 30, and 40 — corresponding to hose OD ranges of approximately 20mm (≈3\/4\"), 30mm (≈1-3\/16\"), and 40mm (≈1-9\/16\"). When in doubt, measure your hose OD with calipers before ordering. If you're unsure, contact us and we'll help you confirm the right fit.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat do the letter codes in the variant names mean (SP, SH, SF, SM)?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eThe letters indicate the socket and plug body style included in each pair. \"S\" = Socket, \"P\" = Plug. The second letter denotes the body style: \u003cstrong\u003eP\u003c\/strong\u003e = push-type, \u003cstrong\u003eH\u003c\/strong\u003e = hex-body, \u003cstrong\u003eF\u003c\/strong\u003e = flat-face, \u003cstrong\u003eM\u003c\/strong\u003e = male-thread style. Each listing ships as one matched socket + plug pair (2 pcs total).\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow strong is the self-locking mechanism — will it hold under pressure?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eC-type pneumatic couplers generally support working pressures of up to approximately 150 PSI (≈10 bar) in typical shop-air applications. The self-locking collar engages automatically on insertion and requires a deliberate sleeve retraction to disconnect, preventing accidental release under load. For exact pressure ratings for your specific variant, please contact us to confirm.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eCan these fittings be used outdoors or in humid environments?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eThese couplers are generally suited for indoor workshop and light industrial use. For prolonged outdoor or high-humidity exposure, periodic lubrication of the locking sleeve is recommended to maintain smooth operation. If corrosion resistance is a primary concern, contact us to confirm the finish specification for your chosen variant before purchasing.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eAre these compatible with standard air compressors and pneumatic tools sold in the US?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eC-type couplers (also referred to as Industrial-type or I\/M-type in some regions) are among the most widely used pneumatic fitting standards in North American workshops. They are generally compatible with air compressors, impact wrenches, nail guns, spray guns, and blow guns that accept C-type connections. Always verify the coupler style your specific tools require before ordering.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eDoes the set include both the socket and the plug?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eYes. Each listing is sold as \u003cstrong\u003e1 Pair (2 Pcs)\u003c\/strong\u003e — one socket and one matching plug — so you have everything needed to create a complete quick-connect air line junction right out of the box. No need to source the socket and plug separately.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow do I connect and disconnect the coupler safely?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003e\u003cstrong\u003eTo connect:\u003c\/strong\u003e Push the plug firmly into the socket until you hear or feel a click — the self-locking collar engages automatically. \u003cstrong\u003eTo disconnect:\u003c\/strong\u003e Depressurize the line first, then retract the outer sleeve collar on the socket while pulling the plug free. Never attempt to disconnect under full line pressure.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n  \u003c\/div\u003e\n\n  \u003c!-- ⑥ CTA BAR --\u003e\n  \u003cdiv class=\"hdiy-cta\"\u003e\n    🛒 Select your size and body style above, then add to cart — ships from our US warehouse.\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"20SP+PP \/ 1 Pair (2 Pcs)","offer_id":52335801467154,"sku":"GLFBBYWGLBZSJ041546x1","price":22.3,"currency_code":"USD","in_stock":true},{"title":"30SP+PP \/ 1 Pair (2 Pcs)","offer_id":52335801499922,"sku":"GLFBBYWGLBZSJ041547x1","price":23.8,"currency_code":"USD","in_stock":true},{"title":"40SP+PP \/ 1 Pair (2 Pcs)","offer_id":52335801532690,"sku":"GLFBBYWGLBZSJ041548x1","price":27.42,"currency_code":"USD","in_stock":true},{"title":"20SH+PH \/ 1 Pair (2 Pcs)","offer_id":52335801565458,"sku":"GLFBBYWGLBZSJ041549x1","price":21.08,"currency_code":"USD","in_stock":true},{"title":"30SH+PH \/ 1 Pair (2 Pcs)","offer_id":52335801598226,"sku":"GLFBBYWGLBZSJ041550x1","price":23.2,"currency_code":"USD","in_stock":true},{"title":"40SH+PH \/ 1 Pair (2 Pcs)","offer_id":52335801630994,"sku":"GLFBBYWGLBZSJ041551x1","price":25.7,"currency_code":"USD","in_stock":true},{"title":"20SF+PF \/ 1 Pair (2 Pcs)","offer_id":52335801663762,"sku":"GLFBBYWGLBZSJ041552x1","price":23.61,"currency_code":"USD","in_stock":true},{"title":"30SF+PF \/ 1 Pair (2 Pcs)","offer_id":52335801696530,"sku":"GLFBBYWGLBZSJ041553x1","price":24.64,"currency_code":"USD","in_stock":true},{"title":"40SF+PF \/ 1 Pair (2 Pcs)","offer_id":52335801729298,"sku":"GLFBBYWGLBZSJ041554x1","price":26.55,"currency_code":"USD","in_stock":true},{"title":"20SM+PM \/ 1 Pair (2 Pcs)","offer_id":52335801762066,"sku":"GLFBBYWGLBZSJ041555x1","price":21.9,"currency_code":"USD","in_stock":true},{"title":"30SM+PM \/ 1 Pair (2 Pcs)","offer_id":52335801794834,"sku":"GLFBBYWGLBZSJ041556x1","price":23.61,"currency_code":"USD","in_stock":true},{"title":"40SM+PM \/ 1 Pair (2 Pcs)","offer_id":52335801827602,"sku":"GLFBBYWGLBZSJ041557x1","price":27.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Main-01_1_1a912564-1389-4800-8bbc-0d76a172dc5f.jpg?v=1781163394","url":"https:\/\/homediyer.com\/products\/pneumatic-c-type-quick-release-coupler-set-self-locking-air-hose-fitting","provider":"HomeDIYer","version":"1.0","type":"link"}