{"product_id":"flare-tee-brass-fitting-8mm-10mm-ac-copper-tube","title":"Flare Tee Brass Fitting for AC Copper Tube — 8mm \u0026 10mm","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eBrass Flare Tee Fittings for AC Copper Tube — Reliable Branch Connections in 8mm \u0026amp; 10mm\u003c\/h2\u003e\n\u003cp\u003eWhen you're routing refrigerant lines for a split-system air conditioner or refrigeration unit, a leaky or mismatched tee fitting can mean hours of rework, refrigerant loss, and a failed pressure test. HVAC technicians and serious DIYers who work with copper tube systems need brass flare tee fittings that seat cleanly, hold under pressure, and don't corrode over time.\u003c\/p\u003e\n\u003cp\u003eEach piece in this listing is a solid brass flare tee fitting available in two sizes: \u003cstrong\u003e8mm OD (≈5\/16\") — Tee #1\u003c\/strong\u003e and \u003cstrong\u003e10mm OD (≈3\/8\") — Tee #2\u003c\/strong\u003e. The tee body features three flare ports arranged in a T-configuration, allowing you to branch a refrigerant or fluid line in two directions from a single run. Available in packs of 1, 2, 5, 8, or 10 pieces so you can stock exactly what your job requires.\u003c\/p\u003e\n\u003cp\u003eThese fittings are well-suited for residential and light commercial split-system AC installations, mini-split branch line connections, refrigeration equipment service, and copper tube plumbing where a branched flare connection is needed. Long-tail use cases include \u003cem\u003e8mm flare tee fitting for mini split copper line\u003c\/em\u003e and \u003cem\u003e10mm brass tee fitting for air conditioning refrigerant line\u003c\/em\u003e.\u003c\/p\u003e\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003eⓘ\u003c\/span\u003e \u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for copper refrigerant tubing with 8mm or 10mm outer diameter. Uses standard 45° SAE flare connection. Confirm your tube OD and flare standard before ordering.\u003c\/div\u003e\n\u003cdiv class=\"hdiy-note\"\u003e\n\u003cspan class=\"hdiy-note-icon\"\u003e⚠\u003c\/span\u003e \u003cstrong\u003eNote:\u003c\/strong\u003e If you are unsure which size fits your system, measure your copper tube's outer diameter or check your AC unit's service manual. Contact us to confirm compatibility before purchase.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003e✅ Key Features of These Brass Flare Tee Fittings for Copper Tube\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 solid brass for durability, corrosion resistance, and reliable performance in refrigerant and fluid line applications.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔌\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003e45° SAE Flare Connection\u003c\/strong\u003e — Standard flare interface compatible with most copper refrigerant tubing and flaring tools used in residential and commercial HVAC\/R work.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🕐\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eT-Branch Configuration\u003c\/strong\u003e — Three-port tee design lets you split or branch a copper refrigerant line without additional adapters, simplifying multi-zone AC line routing.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📈\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eTwo Size Options\u003c\/strong\u003e — Available in 8mm (≈5\/16\") and 10mm (≈3\/8\") to match the most common copper tube ODs used in split-system air conditioning and light commercial refrigeration.\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 — Order 1, 2, 5, 8, or 10 pieces to match your project scope — whether you're servicing a single unit or stocking a service van for multiple jobs.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔧\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eWrench-Flat Design\u003c\/strong\u003e — Hex flats on the fitting body allow secure tightening with a standard open-end or adjustable wrench, reducing the risk of over-tightening or cross-threading during installation.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e📐 Technical Specifications — Brass Flare Tee Fittings\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eFlare Tee Fitting\u003c\/td\u003e\n\u003c\/tr\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\u003eConnection Type\u003c\/th\u003e\n\u003ctd\u003e45° SAE Flare (all three ports)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize — Tee #1\u003c\/th\u003e\n\u003ctd\u003e8mm OD (≈5\/16\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSize — Tee #2\u003c\/th\u003e\n\u003ctd\u003e10mm OD (≈3\/8\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConfiguration\u003c\/th\u003e\n\u003ctd\u003eEqual tee (T-shape, 3 ports)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Tube Type\u003c\/th\u003e\n\u003ctd\u003eCopper refrigerant \/ AC tubing\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\u003ePack Options\u003c\/th\u003e\n\u003ctd\u003e1 \/ 2 \/ 5 \/ 8 \/ 10 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePressure Rating\u003c\/th\u003e\n\u003ctd\u003eSee variant options \/ Contact us to confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eAir conditioning, refrigeration, copper tube plumbing\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\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat size flare tee fitting do I need for my copper tube?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMatch the fitting size to your copper tube's outer diameter. The \u003cstrong\u003e8mm Tee #1\u003c\/strong\u003e (approximately 5\/16\") is typically used for smaller refrigerant lines and secondary circuits, while the \u003cstrong\u003e10mm Tee #2\u003c\/strong\u003e (approximately 3\/8\") suits medium-capacity AC systems and primary liquid lines. When in doubt, measure your tube OD with calipers before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow strong is a brass flare tee fitting under pressure?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eBrass flare fittings are generally rated for the working pressures found in residential and light commercial HVAC\/R systems. The flare joint creates a metal-to-metal seal that is typically more reliable than compression fittings under vibration and thermal cycling. Always verify the pressure rating against your specific system specifications before installation.\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 humid environments?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eBrass offers good corrosion resistance in most indoor and sheltered outdoor environments, making it well-suited for standard split-system AC and refrigeration installations. For direct exposure to salt air or highly corrosive industrial conditions, additional protective measures are generally recommended.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these fittings compatible with standard flare tools and refrigerant lines?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. These tee fittings use a standard 45° SAE flare connection, compatible with most flaring tools and copper refrigerant tubing used in residential and commercial HVAC\/R applications. Please confirm your system uses SAE 45° flare (rather than a metric or JIS flare standard) before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow many fittings do I need for a typical AC installation?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe number of tee fittings depends on your system layout. A single-zone split system typically requires 1–2 tee fittings, while multi-zone or branched refrigerant line sets may need 5 or more. We offer packs of 1, 2, 5, 8, and 10 so you can order exactly what your project requires — no waste, no shortage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between the 8mm Tee #1 and 10mm Tee #2?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e8mm Tee #1\u003c\/strong\u003e is designed for copper tubes with an 8mm outer diameter (approximately 5\/16\"), commonly used in smaller or secondary refrigerant circuits. The \u003cstrong\u003e10mm Tee #2\u003c\/strong\u003e fits 10mm OD copper tube (approximately 3\/8\") and is generally used for primary liquid or suction lines in standard residential AC systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I reuse a brass flare tee fitting after disconnecting it?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eBrass flare fittings can generally be disconnected and reconnected a limited number of times, provided the flare seat and threads are undamaged. Inspect the seating surface carefully before reuse. For critical refrigerant containment applications, re-flaring the tube end is recommended to ensure a leak-free seal on reassembly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your \u003cstrong\u003esize and quantity\u003c\/strong\u003e above, then add to cart — ships from our US warehouse.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"8 mm Tee #1 \/ Pack of 1","offer_id":52331581997330,"sku":"CIP04112x1","price":11.82,"currency_code":"USD","in_stock":true},{"title":"8 mm Tee #1 \/ Pack of 2","offer_id":52331582030098,"sku":"CIP04112x2","price":21.56,"currency_code":"USD","in_stock":true},{"title":"8 mm Tee #1 \/ Pack of 5","offer_id":52331582062866,"sku":"CIP04112x5","price":50.77,"currency_code":"USD","in_stock":true},{"title":"8 mm Tee #1 \/ Pack of 8","offer_id":52331582095634,"sku":"CIP04112x8","price":79.97,"currency_code":"USD","in_stock":true},{"title":"8 mm Tee #1 \/ Pack of 10","offer_id":52331582128402,"sku":"CIP04112x10","price":108.73,"currency_code":"USD","in_stock":true},{"title":"10 mm Tee #2 \/ Pack of 1","offer_id":52331582161170,"sku":"CIP04113x1","price":17.08,"currency_code":"USD","in_stock":true},{"title":"10 mm Tee #2 \/ Pack of 2","offer_id":52331582193938,"sku":"CIP04113x2","price":32.08,"currency_code":"USD","in_stock":true},{"title":"10 mm Tee #2 \/ Pack of 5","offer_id":52331582226706,"sku":"CIP04113x5","price":86.2,"currency_code":"USD","in_stock":true},{"title":"10 mm Tee #2 \/ Pack of 8","offer_id":52331582259474,"sku":"CIP04113x8","price":136.54,"currency_code":"USD","in_stock":true},{"title":"10 mm Tee #2 \/ Pack of 10","offer_id":52331582292242,"sku":"CIP04113x10","price":170.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Main-03_a402ad1b-b845-497d-aab7-52e4cb40d9f3.jpg?v=1781096430","url":"https:\/\/homediyer.com\/de\/products\/flare-tee-brass-fitting-8mm-10mm-ac-copper-tube","provider":"HomeDIYer","version":"1.0","type":"link"}