{"product_id":"brass-pipe-fittings-straight-elbow-tee-plug-hex-nipple-1-2-3-4-inch","title":"1\/2\" \u0026 3\/4\" Brass Pipe Fittings – Straight, Elbow, Tee, Plug \u0026 Hex Nipple Connectors with Seal Washer","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eBrass Pipe Fittings 1\/2\" \u0026amp; 3\/4\" NPT — One Kit, Every Connection You Need\u003c\/h2\u003e\n\u003cp\u003eChasing a slow drip behind the wall, rerouting a gas line in the garage, or extending a compressed air run across the shop — the wrong fitting wastes an entire trip to the hardware store. DIYers, plumbers, and HVAC techs who work with 1\/2\" and 3\/4\" pipe lines need a reliable set of brass NPT pipe fittings that covers every junction type without compromise.\u003c\/p\u003e\n\u003cp\u003eEach piece in this listing is a solid brass NPT pipe fitting available in 15 configurations: Straight (FM), Extension Straight (FM), Reducing Straight (F3\/4\" to M1\/2\"), Elbow (FM and MM), Hex Nipples (MM and reducing M3\/4\" to M1\/2\"), Stop Plug (M), Tee Union (MFM), and Tee in six port-gender combinations (FFF, FFM, FMF, FMM, MFM, MMM). Every fitting ships with a seal washer for a tighter, more reliable joint. Thread sizes are 1\/2\" NPT and 3\/4\" NPT depending on the variant selected.\u003c\/p\u003e\n\u003cp\u003eThese brass NPT fittings are well-suited for residential water supply lines, workshop compressed air systems, natural gas and propane distribution, and radiant heating loops. The reducing variants — such as the 3\/4\" to 1\/2\" straight and hex nipple — are especially useful when transitioning between main supply lines and branch runs, a common task in bathroom remodels and irrigation manifold builds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e🔗\u003c\/span\u003e \u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for \u003cstrong\u003eNPT (National Pipe Taper)\u003c\/strong\u003e threaded systems — the US standard for plumbing, gas, and compressed air. \u003cstrong\u003eNot directly compatible with BSP threads\u003c\/strong\u003e without an adapter. Confirm your existing pipe thread standard before ordering.\u003c\/div\u003e\n\u003ch2\u003e✅ Key Features of These Brass NPT Pipe Fittings\u003c\/h2\u003e\n\u003cul class=\"hdiy-features\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003e15 Fitting Types in One Listing\u003c\/strong\u003e — Straight, elbow, tee, hex nipple, stop plug, and tee union configurations cover virtually every junction in a 1\/2\" or 3\/4\" NPT pipe system.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚙️\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eSolid Brass Construction\u003c\/strong\u003e — Brass resists corrosion from water, air, and many gases, making these fittings a durable choice for both indoor plumbing and outdoor irrigation connections.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔄\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eReducing Variants Included\u003c\/strong\u003e — The 3\/4\" to 1\/2\" straight connector and hex nipple let you step down pipe sizes in a single fitting, eliminating the need for a separate reducer in tight spaces.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eSeal Washer Included\u003c\/strong\u003e — Each fitting ships with a seal washer to provide an additional face seal at the joint, reducing the chance of weeping leaks at threaded connections.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔀\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eSix Tee Port-Gender Combinations\u003c\/strong\u003e — FFF, FFM, FMF, FMM, MFM, and MMM tee variants let you match the exact thread gender of your existing pipes without adapters or couplings.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eStandard NPT Thread Form\u003c\/strong\u003e — Tapered NPT threads self-seal as they tighten, providing a mechanically secure connection that is compatible with standard US pipe thread gauges and tools.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e📐 Technical Specifications — Brass NPT Pipe Fittings\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eSolid brass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThread Standard\u003c\/th\u003e\n\u003ctd\u003eNPT (National Pipe Taper) — US standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Pipe Sizes\u003c\/th\u003e\n\u003ctd\u003e1\/2\" NPT and 3\/4\" NPT (varies by variant)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFitting Types\u003c\/th\u003e\n\u003ctd\u003eStraight, Extension Straight, Reducing Straight, Elbow, Hex Nipple, Stop Plug, Tee Union, Tee (6 port-gender configs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePort Gender Options\u003c\/th\u003e\n\u003ctd\u003eFemale (F) and Male (M) — see variant name for configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReducing Configurations\u003c\/th\u003e\n\u003ctd\u003eF3\/4\" to M1\/2\" (straight); M3\/4\" to M1\/2\" (hex nipple)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIncluded Accessories\u003c\/th\u003e\n\u003ctd\u003eSeal washer (1 per fitting)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eNatural brass (unlacquered)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTypical Working Pressure\u003c\/th\u003e\n\u003ctd\u003eSee variant options — confirm with your system specs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecommended Applications\u003c\/th\u003e\n\u003ctd\u003eWater supply, compressed air, gas lines (verify local codes), irrigation, hydronic heating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eQuantity per Order\u003c\/th\u003e\n\u003ctd\u003e1 piece per order (select type above)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of Origin\u003c\/th\u003e\n\u003ctd\u003eContact us to confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-note\"\u003e\n\u003cspan class=\"hdiy-note-icon\"\u003e⚠️\u003c\/span\u003e \u003cstrong\u003eBefore You Buy:\u003c\/strong\u003e Verify your existing pipe thread standard (NPT vs. BSP) and confirm the port gender (M\/F) of the connection points in your system. When in doubt, use a thread gauge or consult a plumber.\u003c\/div\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I choose the right size brass pipe fitting?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMeasure the outer diameter of your pipe threads and match to the nominal pipe size. 1\/2\" NPT pipe has an OD of approximately 0.840\" (21.3mm); 3\/4\" NPT has an OD of approximately 1.050\" (26.7mm). When in doubt, use a thread gauge or consult a pipe sizing chart before ordering. Note that nominal pipe size does not equal the actual thread diameter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat thread standard do these brass fittings use?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese fittings are designed for \u003cstrong\u003eNPT (National Pipe Taper)\u003c\/strong\u003e threads, the standard used in the United States for plumbing and gas piping. NPT threads are tapered and generally not compatible with BSP (British Standard Pipe) threads without a dedicated adapter. If your system uses BSP threads, please contact us before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan these brass fittings be used outdoors or in wet environments?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eBrass is naturally corrosion-resistant and typically performs well in damp or outdoor environments. For fully exposed outdoor installations, applying PTFE thread tape and a suitable pipe sealant is recommended to maintain a leak-free seal over time. Avoid prolonged contact with highly acidic water or chemicals, which can degrade brass over time.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow strong are these brass pipe fittings?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eBrass fittings of this type are generally rated for working pressures up to 200 PSI for water and 125 PSI for gas applications, though actual ratings depend on the specific configuration, installation quality, and temperature. Always verify pressure ratings against your system requirements and local codes before installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need thread tape or sealant with these fittings?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. NPT threads rely on thread engagement plus a sealant to achieve a leak-free connection. Apply PTFE (Teflon) thread tape or a pipe thread compound to the male threads before assembly. The included seal washer provides additional sealing at the joint face. Do not over-tighten — typically 2–3 turns past hand-tight is sufficient for brass NPT fittings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat applications are these brass fittings suitable for?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese fittings are generally suitable for residential water supply lines, workshop compressed air systems, natural gas and propane distribution (verify local codes and regulations), irrigation systems, and hydronic heating loops. They are not recommended for highly acidic fluids, steam at elevated pressures, or applications that specifically require stainless steel or CPVC fittings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between the Tee FFF, FFM, FMF, FMM, MFM, and MMM variants?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe letters indicate the port gender on each of the three tee openings in order: \u003cstrong\u003eF = Female\u003c\/strong\u003e (internal\/socket thread), \u003cstrong\u003eM = Male\u003c\/strong\u003e (external thread). For example:\u003c\/p\u003e\n\u003cul class=\"hdiy-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eFFF\u003c\/strong\u003e — all three ports are female (accepts male pipe ends)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMMM\u003c\/strong\u003e — all three ports are male (inserts into female sockets)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFMF\u003c\/strong\u003e — female \/ male \/ female ports\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eChoose based on the thread gender of the pipes or fittings you are connecting at each port of the tee.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use these fittings for a reducing connection between 3\/4\" and 1\/2\" pipe?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. Several variants are specifically designed for reducing connections. The \u003cstrong\u003eStraight F3\/4\" to M1\/2\"\u003c\/strong\u003e and the \u003cstrong\u003eHex Nipples M3\/4\" to M1\/2\"\u003c\/strong\u003e allow you to step down from a 3\/4\" main line to a 1\/2\" branch in a single fitting — a common requirement in bathroom remodels, irrigation manifolds, and compressed air distribution systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your \u003cstrong\u003efitting type\u003c\/strong\u003e above, then add to cart — ships from our US warehouse.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"Straight【FM1\u00262\"】 \/ 1pcs","offer_id":52331499651346,"sku":"LFLHYJJ01771x1","price":10.72,"currency_code":"USD","in_stock":true},{"title":"Extension Straight【FM1\u00262\"】 \/ 1pcs","offer_id":52331499684114,"sku":"LFLHYJJ01776x1","price":13.46,"currency_code":"USD","in_stock":true},{"title":"Straight【F3\u00264\" to M1\u00262\"】 \/ 1pcs","offer_id":52331499716882,"sku":"LFLHYJJ01783x1","price":11.94,"currency_code":"USD","in_stock":true},{"title":"Elbow【FM1\u00262\"】 \/ 1pcs","offer_id":52331499749650,"sku":"LFLHYJJ01782x1","price":13.19,"currency_code":"USD","in_stock":true},{"title":"Elbow【M1\u00262\" to M1\u00262\"】 \/ 1pcs","offer_id":52331499782418,"sku":"LFLHYJJ01773x1","price":11.29,"currency_code":"USD","in_stock":true},{"title":"Hex Nipples【M3\u00264\" to M1\u00262\"】 \/ 1pcs","offer_id":52331499815186,"sku":"LFLHYJJ01770x1","price":13.44,"currency_code":"USD","in_stock":true},{"title":"Hex Nipples【MM1\u00262\"】 \/ 1pcs","offer_id":52331499847954,"sku":"LFLHYJJ01778x1","price":10.72,"currency_code":"USD","in_stock":true},{"title":"Stop Plug【M1\u00262\"】 \/ 1pcs","offer_id":52331499880722,"sku":"LFLHYJJ01769x1","price":9.83,"currency_code":"USD","in_stock":true},{"title":"Tee Union【MFM1\u00262\"】 \/ 1pcs","offer_id":52331499913490,"sku":"LFLHYJJ01780x1","price":18.2,"currency_code":"USD","in_stock":true},{"title":"Tee【FFF1\u00262\"】 \/ 1pcs","offer_id":52331499946258,"sku":"LFLHYJJ01777x1","price":17.27,"currency_code":"USD","in_stock":true},{"title":"Tee【FFM1\u00262\"】 \/ 1pcs","offer_id":52331499979026,"sku":"LFLHYJJ01781x1","price":18.09,"currency_code":"USD","in_stock":true},{"title":"Tee【FMF1\u00262\"】 \/ 1pcs","offer_id":52331500011794,"sku":"LFLHYJJ01779x1","price":18.36,"currency_code":"USD","in_stock":true},{"title":"Tee【FMM1\u00262\"】 \/ 1pcs","offer_id":52331500044562,"sku":"LFLHYJJ01772x1","price":17.65,"currency_code":"USD","in_stock":true},{"title":"Tee【MFM1\u00262\"】 \/ 1pcs","offer_id":52331500077330,"sku":"LFLHYJJ01775x1","price":17.65,"currency_code":"USD","in_stock":true},{"title":"Tee【MMM1\u00262\"】 \/ 1pcs","offer_id":52331500110098,"sku":"LFLHYJJ01774x1","price":16.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Main-06_40f9fe0b-c235-401b-9b72-bfe78fc1f58c.jpg?v=1781016629","url":"https:\/\/homediyer.com\/de\/products\/brass-pipe-fittings-straight-elbow-tee-plug-hex-nipple-1-2-3-4-inch","provider":"HomeDIYer","version":"1.0","type":"link"}