{"product_id":"15-piece-quick-connect-air-compressor-fitting-kit-professional-grade-brass-npt-connections-set-with-storage-case","title":"15-Piece Quick Connect Air Compressor Fitting Kit - Professional Grade Brass NPT Connections Set with Storage Case","description":"\u003cdiv class=\"pat-quick-facts\" data-pat-added=\"2026-05-13\" style=\"margin-bottom:18px;padding:14px 16px;background:#f8fafc;border-radius:10px;border:1px solid #e2e8f0;\"\u003e\n\u003cdiv style=\"font-size:0.85em;color:#64748b;font-weight:600;text-transform:uppercase;letter-spacing:0.05em;margin-bottom:10px;\"\u003eQuick Facts\u003c\/div\u003e\n\u003cdiv style=\"display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px;\"\u003e\n\u003cspan style=\"background:#dbeafe;color:#1e40af;padding:6px 14px;border-radius:20px;font-size:0.9em;font-weight:600;display:inline-block;white-space:nowrap;\"\u003e15 pieces\u003c\/span\u003e\u003cspan style=\"background:#dcfce7;color:#166534;padding:6px 14px;border-radius:20px;font-size:0.9em;font-weight:600;display:inline-block;white-space:nowrap;\"\u003e1\/4\" NPT\u003c\/span\u003e\u003cspan style=\"background:#fef3c7;color:#a16207;padding:6px 14px;border-radius:20px;font-size:0.9em;font-weight:600;display:inline-block;white-space:nowrap;\"\u003eSolid brass\u003c\/span\u003e\u003cspan style=\"background:#ccfbf1;color:#115e59;padding:6px 14px;border-radius:20px;font-size:0.9em;font-weight:600;display:inline-block;white-space:nowrap;\"\u003eMilton M-style\u003c\/span\u003e\u003cspan style=\"background:#f1f5f9;color:#334155;padding:6px 14px;border-radius:20px;font-size:0.9em;font-weight:600;display:inline-block;white-space:nowrap;\"\u003eStorage case\u003c\/span\u003e\u003cspan style=\"background:#fae8ff;color:#86198f;padding:6px 14px;border-radius:20px;font-size:0.9em;font-weight:600;display:inline-block;white-space:nowrap;\"\u003eLe Lematec\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-size:0.95em;color:#475569;line-height:1.5;\"\u003e\n\u003cstrong style=\"color:#0f172a;\"\u003eBest for:\u003c\/strong\u003e Connecting any 1\/4\" NPT air tool to your compressor — couplers, plugs, hose adapters, and Teflon tape, all in one universal kit.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eA complete 15-piece air-compressor fittings kit in a single storage case: solid-brass quick-connect couplers, male and female plugs, NPT adapters, and Teflon tape. Milton M-style (Type D\/I\/M) profile, the most common standard in North America, so it pairs with virtually every home and shop compressor on the market.\u003c\/p\u003e\n\u003cdiv class=\"compatible-with\" style=\"margin-top:20px;padding:18px;background:#eff6ff;border:1px solid #3b82f6;border-radius:10px;\"\u003e\n\u003ch3 style=\"margin-top:0;color:#1d4ed8;font-size:1.1em;\"\u003eCompatible With\u003c\/h3\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 12px 6px 0;font-weight:600;color:#1e40af;vertical-align:top;white-space:nowrap;\"\u003eAir compressors\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;color:#1e3a5f;\"\u003eAll compressors with 1\/4\" NPT outlets (use a 3\/8\"-to-1\/4\" adapter if needed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 12px 6px 0;font-weight:600;color:#1e40af;vertical-align:top;white-space:nowrap;\"\u003eAir tools\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;color:#1e3a5f;\"\u003eAll pneumatic tools with 1\/4\" NPT inlets — impact wrenches, ratchets, sanders, blow guns, nailers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 12px 6px 0;font-weight:600;color:#1e40af;vertical-align:top;white-space:nowrap;\"\u003eAir hoses\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;color:#1e3a5f;\"\u003eStandard 1\/4\" ID air hoses with NPT threads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 12px 6px 0;font-weight:600;color:#1e40af;vertical-align:top;white-space:nowrap;\"\u003eQuick-connect system\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;color:#1e3a5f;\"\u003eMilton M-style (Type D\/I\/M industrial profile)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"whats-in-box\" style=\"margin-top:20px;padding:18px;background:#fefce8;border:1px solid #eab308;border-radius:10px;\"\u003e\n\u003ch3 style=\"margin-top:0;color:#a16207;font-size:1.1em;\"\u003eWhat’s in the Box\u003c\/h3\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli style=\"margin-bottom:4px;color:#78350f;\"\u003e2 brass quick-connect couplers (female)\u003c\/li\u003e\n\u003cli style=\"margin-bottom:4px;color:#78350f;\"\u003e3 male plugs (1\/4\" NPT)\u003c\/li\u003e\n\u003cli style=\"margin-bottom:4px;color:#78350f;\"\u003e3 female plugs (1\/4\" NPT)\u003c\/li\u003e\n\u003cli style=\"margin-bottom:4px;color:#78350f;\"\u003e5 male-to-male NPT connectors\u003c\/li\u003e\n\u003cli style=\"margin-bottom:4px;color:#78350f;\"\u003e2 rolls of Teflon thread tape\u003c\/li\u003e\n\u003cli style=\"margin-bottom:4px;color:#78350f;\"\u003eOrganized storage case\u003c\/li\u003e\n\u003cli style=\"margin-bottom:4px;color:#78350f;\"\u003eUser manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete 15-piece set:\u003c\/strong\u003e Every coupler, plug, and adapter needed to connect compressor, hose, and tools — no missing pieces, no follow-up trips to the hardware store.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolid brass construction:\u003c\/strong\u003e Corrosion-resistant, handles repeated connect\/disconnect cycles without wear, and seals tighter than plated-steel equivalents.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMilton M-style (1\/4\" NPT):\u003c\/strong\u003e The most common industrial profile in North America — fits virtually all major brands including Milton, Foster, ARO, Campbell Hausfeld, and DeWalt.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuick-connect convenience:\u003c\/strong\u003e Snap-in connections for instant tool changes — no wrenches, no fumbling with threaded fittings during a busy shop day.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTeflon tape included:\u003c\/strong\u003e Two rolls cover the threaded NPT joints with the right sealing layer count from the start.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage case:\u003c\/strong\u003e Keeps every piece sorted and portable — drop it in the truck or under the bench.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;margin-top:8px;\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 12px 6px 0;font-weight:600;vertical-align:top;white-space:nowrap;border-bottom:1px solid #e2e8f0;\"\u003eMaterial\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;border-bottom:1px solid #e2e8f0;\"\u003eSolid brass (fittings) + steel (spring\/internal components)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 12px 6px 0;font-weight:600;vertical-align:top;white-space:nowrap;border-bottom:1px solid #e2e8f0;\"\u003eConnection size\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;border-bottom:1px solid #e2e8f0;\"\u003e1\/4\" NPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 12px 6px 0;font-weight:600;vertical-align:top;white-space:nowrap;border-bottom:1px solid #e2e8f0;\"\u003eQuick-connect style\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;border-bottom:1px solid #e2e8f0;\"\u003eMilton M-style (Type D\/I\/M industrial)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 12px 6px 0;font-weight:600;vertical-align:top;white-space:nowrap;border-bottom:1px solid #e2e8f0;\"\u003ePieces\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;border-bottom:1px solid #e2e8f0;\"\u003e15 (couplers, plugs, connectors, tape)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:6px 12px 6px 0;font-weight:600;vertical-align:top;white-space:nowrap;\"\u003eStorage\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;\"\u003eOrganized hard case included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eCommon Questions\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\" style=\"margin-bottom:14px;\"\u003e\n\u003cp style=\"margin:0 0 4px 0;font-weight:600;color:#1e293b;\"\u003eWill these fittings work with my compressor?\u003c\/p\u003e\n\u003cp style=\"margin:0;color:#475569;\"\u003eIf your compressor has 1\/4\" NPT outlets, yes — that covers the vast majority of home and pro shop compressors. If your compressor uses 3\/8\" NPT, you will need a 3\/8\"-to-1\/4\" reducer (not included). Check the existing fitting on your compressor; if it’s a 1\/4\" brass fitting like the ones in this set, you are good to go.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\" style=\"margin-bottom:14px;\"\u003e\n\u003cp style=\"margin:0 0 4px 0;font-weight:600;color:#1e293b;\"\u003eWhat’s the difference between a coupler and a plug?\u003c\/p\u003e\n\u003cp style=\"margin:0;color:#475569;\"\u003eA coupler is the female quick-connect that stays on your air line and accepts a plug. A plug is the male quick-connect that screws into your air tool. Pushing the plug into the coupler creates an instant, sealed air connection. This kit includes both ends so you can build your full system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\" style=\"margin-bottom:14px;\"\u003e\n\u003cp style=\"margin:0 0 4px 0;font-weight:600;color:#1e293b;\"\u003eDo I need Teflon tape on quick-connect fittings?\u003c\/p\u003e\n\u003cp style=\"margin:0;color:#475569;\"\u003eUse Teflon tape on the threaded NPT joints where fittings screw into your compressor, tools, or hose. Wrap 2–3 layers clockwise on the male threads before tightening. Do NOT use tape on the quick-connect coupling surfaces themselves — those seal mechanically with an internal O-ring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\" style=\"margin-bottom:14px;\"\u003e\n\u003cp style=\"margin:0 0 4px 0;font-weight:600;color:#1e293b;\"\u003eWhat’s the difference between industrial and automotive quick-connect styles?\u003c\/p\u003e\n\u003cp style=\"margin:0;color:#475569;\"\u003eIndustrial (Milton M-style) and automotive (Milton I\/M or T-style) quick-connects have different coupling profiles and are NOT interchangeable. This kit uses the industrial M-style profile, which is the dominant standard in North American shops. If your existing fittings are automotive, replace them with this kit to standardize.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\" style=\"margin-bottom:14px;\"\u003e\n\u003cp style=\"margin:0 0 4px 0;font-weight:600;color:#1e293b;\"\u003eWill brass fittings hold up to daily shop use?\u003c\/p\u003e\n\u003cp style=\"margin:0;color:#475569;\"\u003eYes — brass is the preferred material for high-cycle pneumatic fittings. It resists corrosion, will not gall on repeated connect\/disconnect cycles, and outlasts zinc-plated steel by years in humid or oily shop environments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\" style=\"margin-bottom:14px;\"\u003e\n\u003cp style=\"margin:0 0 4px 0;font-weight:600;color:#1e293b;\"\u003eHow do I set up a multi-tool air system with this kit?\u003c\/p\u003e\n\u003cp style=\"margin:0;color:#475569;\"\u003eInstall a coupler on the compressor’s outlet, run your hose to a manifold or wye fitting near the bench, and put a coupler at each drop point. Screw a plug into each tool. Now you can swap tools in seconds without disconnecting the main line. The kit gives you enough pieces to set up a typical 2–3 tool shop.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n\"@context\":\"https:\/\/schema.org\",\n\"@type\":\"FAQPage\",\n\"mainEntity\":[\n{\"@type\":\"Question\",\"name\":\"Will these fittings work with my compressor?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"If your compressor has 1\/4-inch NPT outlets, yes. That covers the vast majority of home and shop compressors. If your compressor uses 3\/8-inch NPT, you will need a 3\/8-to-1\/4 reducer (not included).\"}},\n{\"@type\":\"Question\",\"name\":\"What is the difference between a coupler and a plug?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A coupler is the female quick-connect that stays on your air line and accepts a plug. A plug is the male quick-connect that screws into your air tool. Pushing the plug into the coupler creates an instant, sealed air connection. This kit includes both ends.\"}},\n{\"@type\":\"Question\",\"name\":\"Do I need Teflon tape on quick-connect fittings?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Use Teflon tape on the threaded NPT joints where fittings screw into the compressor, tools, or hose. Wrap 2 to 3 layers clockwise on the male threads. Do not use tape on the quick-connect coupling surfaces themselves; those seal mechanically with an internal O-ring.\"}},\n{\"@type\":\"Question\",\"name\":\"What is the difference between industrial and automotive quick-connect styles?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Industrial (Milton M-style) and automotive (Milton I\/M or T-style) quick-connects have different coupling profiles and are NOT interchangeable. This kit uses the industrial M-style profile, the dominant standard in North American shops.\"}},\n{\"@type\":\"Question\",\"name\":\"Will brass fittings hold up to daily shop use?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. Brass is the preferred material for high-cycle pneumatic fittings. It resists corrosion, will not gall on repeated connect\/disconnect cycles, and outlasts zinc-plated steel in humid or oily shop environments.\"}},\n{\"@type\":\"Question\",\"name\":\"How do I set up a multi-tool air system with this kit?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Install a coupler on the compressor's outlet, run hose to a manifold or wye fitting near the bench, and put a coupler at each drop point. Screw a plug into each tool. The kit includes enough pieces to set up a typical 2 to 3 tool shop.\"}}\n]\n}\n\u003c\/script\u003e\n\u003ch3\u003eRelated Guides\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/news\/air-hose-fittings-quick-couplers-npt-guide\"\u003eAir Hose Fittings \u0026amp; Quick Couplers Explained\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/news\/air-compressor-fittings-types-sizes-compatibility-guide\"\u003eFittings Types \u0026amp; Compatibility Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/news\/how-to-choose-air-hose-size-guide\"\u003eHow to Choose Air Hose Size\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/news\/quick-connects-for-air-tools-pick-the-right-fit\"\u003eQuick Connects: Pick the Right Fit\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"pat-related-content\" data-pat-added=\"2026-05-13\" style=\"margin-top:20px;padding:20px;background:#f8fafc;border-radius:10px;border:1px solid #cbd5e1;\"\u003e\n\u003ch3 style=\"margin-top:0;margin-bottom:14px;color:#0f172a;font-size:1.15em;\"\u003eRelated Products \u0026amp; Categories\u003c\/h3\u003e\n\u003cdiv style=\"display:flex;flex-wrap:wrap;gap:24px;\"\u003e\n\u003cdiv style=\"flex:1 1 240px;min-width:200px;\"\u003e\n\u003cp style=\"margin:0 0 10px 0;font-weight:600;color:#334155;\"\u003eComplete your setup\u003c\/p\u003e\n\u003cul style=\"margin:0;padding-left:18px;color:#475569;list-style:disc;\"\u003e\n\u003cli style=\"margin-bottom:6px;\"\u003e\u003ca href=\"\/products\/air-filter-regulator-compressor-oil-water-separator-combo-with-gauge\" style=\"color:#1d4ed8;text-decoration:none;font-weight:500;\"\u003eAI303-R1 Filter Regulator with Gauge\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin-bottom:6px;\"\u003e\u003ca href=\"\/products\/air-compressor-vacuum-kit\" style=\"color:#1d4ed8;text-decoration:none;font-weight:500;\"\u003eVacuum \u0026amp; Blower Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin-bottom:6px;\"\u003e\u003ca href=\"\/products\/digital-air-regulator-gauge-dar01b\" style=\"color:#1d4ed8;text-decoration:none;font-weight:500;\"\u003eDAR01B Digital Air Regulator\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 240px;min-width:200px;\"\u003e\n\u003cp style=\"margin:0 0 10px 0;font-weight:600;color:#334155;\"\u003eBrowse categories\u003c\/p\u003e\n\u003cul style=\"margin:0;padding-left:18px;color:#475569;list-style:disc;\"\u003e\n\u003cli style=\"margin-bottom:6px;\"\u003e\u003ca href=\"\/collections\/accessories\" style=\"color:#1d4ed8;text-decoration:none;font-weight:500;\"\u003eAir Accessories\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"margin-bottom:6px;\"\u003e\u003ca href=\"\/collections\/regulators\" style=\"color:#1d4ed8;text-decoration:none;font-weight:500;\"\u003eAir Regulators\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n","brand":"Pro Air Tools","offers":[{"title":"Default Title","offer_id":45631182962742,"sku":"NI-6047-LD4U","price":20.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/6393\/8614\/files\/le-lematec-15-pc-air-compressor-hose-fitting-kit-brass-connectors-hero_webp.jpg?v=1777844193","url":"https:\/\/www.gmserviceguy.shop\/products\/15-piece-quick-connect-air-compressor-fitting-kit-professional-grade-brass-npt-connections-set-with-storage-case","provider":"Gm Service Guy","version":"1.0","type":"link"}