{"product_id":"brass-y-piece-3-way-reducer-joiner-pipe-fitting-od-4mm-19mm","title":"Brass Y-Piece 3-Way Reducer Joiner — Air Gas Fuel Water Pipe Fitting OD 4mm–19mm","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 OD size for my pipe fitting?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Measure the outer diameter (OD) of your existing tubing or hose with calipers. This product is sized by OD, ranging from 4mm (≈5\/32\\u201d) to 19mm (≈3\/4\\u201d). Match the OD measurement to the variant you select. If you\\u2019re between sizes, generally choose the smaller size and use a sealant or compression sleeve for a snug fit.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What pressure rating can these brass fittings handle?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Brass push-fit and barbed Y fittings of this type typically handle working pressures up to 150 PSI for air and water applications under normal conditions. For fuel or gas lines, always verify the pressure rating against your system specs. Contact us to confirm if you have specific pressure requirements.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are these fittings suitable for outdoor or corrosive environments?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Brass offers good natural corrosion resistance and is generally suitable for outdoor use in moderate climates. It performs well with water, air, and most fuels. For highly corrosive or saltwater environments, additional protective measures or stainless steel alternatives may be more appropriate.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What thread or connection standard do these fittings use?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"These are barbed\/push-fit style Y fittings sized by outer diameter (OD). They are designed to slip over tubing or hose of the matching OD and are typically secured with hose clamps or zip ties. They do not use threaded connections. Confirm your tubing OD before ordering.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I use these for fuel lines in automotive applications?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Brass is generally compatible with gasoline, diesel, and many other fuels. These fittings are commonly used in small engine fuel systems, carbureted vehicles, and DIY fuel routing. Always verify compatibility with your specific fuel type and ensure connections are secured with appropriate clamps for safety.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many pieces do I need to order, and can I mix sizes?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Each variant is sold in packs of 1, 3, 5, 10, or 20 pieces of the same OD size. To get multiple sizes, simply add each size variant to your cart separately. Buying in larger packs (10 or 20 pcs) typically offers a lower per-piece cost.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Where do these ship from, and how long does delivery take?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"All orders ship from our US warehouse. Standard delivery typically takes 3–7 business days depending on your location. Expedited options may be available at checkout.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\n\u003cdiv class=\"hdiy-desc\"\u003e\n\n  \u003cdiv class=\"hdiy-overview\"\u003e\n    \u003ch2\u003eBrass Y-Piece 3-Way Reducer Joiner — Split or Merge Any Air, Gas, Fuel, or Water Line\u003c\/h2\u003e\n    \u003cp\u003eWhether you're routing compressed air to two tools at once, splitting a fuel line in a small engine build, or branching a water supply in a tight plumbing run, finding a reliable brass 3-way Y reducer joiner that actually seals without leaking is harder than it should be. This fitting is built for DIYers, mechanics, and hobbyists who need a compact, durable solution that works the first time.\u003c\/p\u003e\n    \u003cp\u003eEach piece is machined from solid brass and features a Y-shaped 3-way body that allows one inlet to split into two outlets — or two lines to merge into one. Available in outer diameter (OD) sizes from 4mm (≈5\/32\") to 19mm (≈3\/4\"), these fittings cover a wide range of tubing and hose diameters. Order in packs of 1, 3, 5, 10, or 20 pieces to match your project scale.\u003c\/p\u003e\n    \u003cp\u003eTypical use cases include air compressor line splitting for workshop setups, fuel line branching in carbureted engines and small machinery, water distribution in irrigation or aquarium systems, and gas line routing in DIY propane or pneumatic builds — all scenarios where a compact brass Y pipe fitting for air and gas lines saves time and eliminates improvised solutions.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-compat\"\u003e\n    \u003cspan class=\"hdiy-compat-icon\"\u003e🔵\u003c\/span\u003e\n    \u003cstrong\u003eCompatibility Note:\u003c\/strong\u003e These fittings are sized by \u003cstrong\u003eouter diameter (OD)\u003c\/strong\u003e of the tubing or hose. Measure your existing tube OD with calipers before selecting a size. Available OD sizes: 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 19mm.\n  \u003c\/div\u003e\n\n  \u003ch2\u003e✅ Key Features of These Brass Y-Piece 3-Way Reducer Joiner 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\u003eSolid Brass Construction\u003c\/strong\u003e — Machined from brass for durability, natural corrosion resistance, and reliable performance in air, gas, fuel, and water line applications.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔀\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eTrue 3-Way Y Design\u003c\/strong\u003e — Splits one line into two or joins two lines into one, making this brass Y pipe fitting ideal for branching compressed air or fuel systems without additional adapters.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📏\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eWide Size Range (OD 4mm–19mm)\u003c\/strong\u003e — Eight OD sizes cover most standard tubing and hose diameters used in pneumatic, hydraulic, fuel, and water plumbing setups.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e💧\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eMulti-Media Compatible\u003c\/strong\u003e — Suitable for use with air, gas, fuel, and water lines, making these fittings versatile across automotive, workshop, irrigation, and aquarium applications.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eFlexible Pack Quantities\u003c\/strong\u003e — Available in 1, 3, 5, 10, or 20-piece packs so you can order exactly what your project requires — from a single repair to a full system build.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🚀\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eShips from US Warehouse\u003c\/strong\u003e — Stocked domestically for faster delivery, so your project doesn't stall waiting on overseas shipping.\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003e📐 Technical Specifications — Brass 3-Way Y Reducer Pipe Fitting\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\u003eBrass\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eFitting Type\u003c\/th\u003e\n\u003ctd\u003eY-Piece 3-Way Reducer \/ Joiner (Barbed \/ Push-Fit)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eAvailable OD Sizes\u003c\/th\u003e\n\u003ctd\u003e4mm (≈5\/32\"), 6mm (≈1\/4\"), 8mm (≈5\/16\"), 10mm (≈3\/8\"), 12mm (≈15\/32\"), 14mm (≈9\/16\"), 16mm (≈5\/8\"), 19mm (≈3\/4\")\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003ePack Quantities\u003c\/th\u003e\n\u003ctd\u003e1 Pcs, 3 Pcs, 5 Pcs, 10 Pcs, 20 Pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eCompatible Media\u003c\/th\u003e\n\u003ctd\u003eAir, Gas, Fuel, Water\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eConnection Style\u003c\/th\u003e\n\u003ctd\u003eBarbed \/ Push-Fit (secure with hose clamp)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eThread Standard\u003c\/th\u003e\n\u003ctd\u003eSee variant options — barbed OD sizing, no thread\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eWorking Pressure\u003c\/th\u003e\n\u003ctd\u003eContact us to confirm for your specific application\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eNatural brass\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eCountry of Origin\u003c\/th\u003e\n\u003ctd\u003eSee variant options\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\u003eSizing Tip:\u003c\/strong\u003e Always measure your tubing's outer diameter (OD) with calipers before ordering. Do not rely on nominal pipe size (NPS) alone — actual OD may differ. When in doubt, contact us before purchasing.\n  \u003c\/div\u003e\n\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 OD size for my pipe fitting?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eMeasure the outer diameter (OD) of your existing tubing or hose with calipers. This product is sized by OD, ranging from 4mm (≈5\/32\") to 19mm (≈3\/4\"). Match the OD measurement to the variant you select. If you're between sizes, generally choose the smaller size and use a sealant or compression sleeve for a snug fit.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat pressure rating can these brass fittings handle?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eBrass push-fit and barbed Y fittings of this type typically handle working pressures up to 150 PSI for air and water applications under normal conditions. For fuel or gas lines, always verify the pressure rating against your system specs. Contact us to confirm if you have specific pressure requirements.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eAre these fittings suitable for outdoor or corrosive environments?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eBrass offers good natural corrosion resistance and is generally suitable for outdoor use in moderate climates. It performs well with water, air, and most fuels. For highly corrosive or saltwater environments, additional protective measures or stainless steel alternatives may be more appropriate.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat thread or connection standard do these fittings use?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eThese are barbed\/push-fit style Y fittings sized by outer diameter (OD). They are designed to slip over tubing or hose of the matching OD and are typically secured with hose clamps or zip ties. They do not use threaded connections. Confirm your tubing OD before ordering.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eCan I use these for fuel lines in automotive applications?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eBrass is generally compatible with gasoline, diesel, and many other fuels. These fittings are commonly used in small engine fuel systems, carbureted vehicles, and DIY fuel routing. Always verify compatibility with your specific fuel type and ensure connections are secured with appropriate clamps for safety.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow many pieces do I need to order, and can I mix sizes?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eEach variant is sold in packs of 1, 3, 5, 10, or 20 pieces of the same OD size. To get multiple sizes, simply add each size variant to your cart separately. Buying in larger packs (10 or 20 pcs) typically offers a lower per-piece cost.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhere do these ship from, and how long does delivery take?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eAll orders ship from our US warehouse. Standard delivery typically takes 3–7 business days depending on your location. Expedited options may be available at checkout.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-cta\"\u003e\n    🛒 Select your \u003cstrong\u003esize (OD) and quantity\u003c\/strong\u003e above, then add to cart — ships from our US warehouse.\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"4mm \/ 1 Pcs","offer_id":52331485561106,"sku":"GLFBQLWGLBZSJ024372x1","price":4.83,"currency_code":"USD","in_stock":true},{"title":"4mm \/ 3 Pcs","offer_id":52331485593874,"sku":"GLFBQLWGLBZSJ024372x3","price":6.11,"currency_code":"USD","in_stock":true},{"title":"4mm \/ 5 Pcs","offer_id":52331485626642,"sku":"GLFBQLWGLBZSJ024372x5","price":8.36,"currency_code":"USD","in_stock":true},{"title":"4mm \/ 10 Pcs","offer_id":52331485659410,"sku":"GLFBQLWGLBZSJ024372x10","price":14.48,"currency_code":"USD","in_stock":true},{"title":"4mm \/ 20 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