{"product_id":"brass-compression-cross-fitting-4-way-flared-connector-6mm-8mm","title":"Brass Compression Cross Fitting 4-Way Flared Connector — 6mm \u0026 8mm","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eBrass Compression Cross Fitting — 4-Way Flared Connector for 6mm \u0026amp; 8mm Tubing\u003c\/h2\u003e\n\u003cp\u003eWhen you're routing pneumatic lines, fluid distribution systems, or DIY air circuits and need to split or merge flow at a single junction, a loose or mismatched fitting can mean leaks, pressure drops, and rework. These brass compression cross fittings are built for builders, technicians, and DIYers who need a reliable 4-way connection point without the hassle of soldering or specialty tools.\u003c\/p\u003e\n\u003cp\u003eEach piece is a solid brass 4-way cross (plus-shaped) compression fitting with flared port ends, available in 6mm (≈1\/4\"), 8mm (≈5\/16\"), and a reducer cross configuration of 6×6×8×8mm. The reducer variant connects two 6mm ports and two 8mm ports in a single cross junction. Available in quantities of 1, 3, or 5 pieces per order to suit single repairs or full system builds.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include pneumatic air line distribution panels, water or coolant tubing manifolds in workshop equipment, and multi-branch fluid routing in irrigation or laboratory setups — anywhere a compact brass cross connector for 6mm tubing or 8mm compression fitting is needed.\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 semi-rigid and rigid tubing with matching outer diameters — including nylon, PU, PE, and copper tube. Select the size that matches your tubing OD. The 6×6×8×8mm variant is for mixed-diameter cross connections.\u003c\/div\u003e\n\u003ch2\u003e✅ Key Features of These Brass Compression Cross 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, corrosion resistance in standard environments, and long service life in pneumatic 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\u003eTrue 4-Way Cross Design\u003c\/strong\u003e — The plus-shaped cross body allows flow to branch in four directions simultaneously, making it ideal for compact air line distribution or fluid manifold builds.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eFlared Port Ends\u003c\/strong\u003e — Flared compression-style ports create a mechanical seal against the tubing OD, reducing leak points without thread sealant or adhesive in most low-to-medium pressure applications.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔀\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eReducer Cross Option (6×6×8×8mm)\u003c\/strong\u003e — The mixed-diameter variant lets you bridge two different tubing sizes at one junction — a practical solution for systems where 6mm and 8mm lines meet, 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\u003eTool-Friendly Installation\u003c\/strong\u003e — Compression fitting design requires only a wrench to tighten — no soldering, no flux, no heat. Clean-cut tubing inserts directly into the flared port for a straightforward connection.\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 as 1, 3, or 5-piece sets so you can order exactly what your project needs — whether it's a single repair or stocking up for a multi-branch system build.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e📐 Technical Specifications — Brass Compression Cross Fittings\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eFitting Type\u003c\/th\u003e\n\u003ctd\u003eCompression Cross (4-Way \/ Plus Shape)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEnd Style\u003c\/th\u003e\n\u003ctd\u003eFlared Compression\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\u003eAvailable Sizes (OD)\u003c\/th\u003e\n\u003ctd\u003e6mm (≈1\/4\"), 8mm (≈5\/16\"), 6×6×8×8mm reducer cross\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Tubing\u003c\/th\u003e\n\u003ctd\u003eNylon, PU, PE, Copper — matching OD required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWorking Pressure\u003c\/th\u003e\n\u003ctd\u003eSee variant options — contact us to confirm for your application\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInstallation Method\u003c\/th\u003e\n\u003ctd\u003eCompression (wrench tighten, no soldering required)\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 Quantities\u003c\/th\u003e\n\u003ctd\u003e1 Pcs, 3 Pcs, 5 Pcs\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-faq\"\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I choose the right size for my tubing?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMatch the fitting size to your tubing's outer diameter (OD). Select the 6mm option for tubing with a 6mm OD — that's approximately 1\/4\" — and the 8mm option for 8mm OD tubing (approximately 5\/16\"). The 6×6×8×8mm reducer cross is typically used when you need to connect two 6mm lines to two 8mm lines at a single junction. When in doubt, measure your tubing OD with calipers before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat pressure rating do these fittings generally support?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eBrass compression fittings of this type generally support working pressures in the range of 150–300 PSI depending on tubing material, wall thickness, and installation quality. For exact pressure ratings specific to your application, please contact us to confirm before use in high-pressure systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\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 corrosion resistance in most indoor and mild outdoor environments. It is generally not recommended for highly saline, acidic, or ammonia-rich conditions. For harsh outdoor, marine, or chemical-exposure applications, stainless steel fittings are typically a better choice.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat tubing types are compatible with these compression cross fittings?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese fittings are typically compatible with semi-rigid and rigid tubing including nylon, polyurethane (PU), polyethylene (PE), and copper tubing with matching outer diameters. Always verify that your tubing OD matches the selected fitting size for a secure, leak-free compression seal.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need any special tools to install these fittings?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eIn most cases, only a standard wrench is needed to tighten the compression fitting — no soldering, flux, or heat required. Ensure the tubing end is cut cleanly and squarely before insertion. A tube cutter is recommended over a utility knife for the cleanest, most leak-resistant cut.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat does the 6×6×8×8mm size mean?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe 6×6×8×8mm designation indicates a reducer cross fitting with two 6mm ports and two 8mm ports arranged in a cross (4-way) configuration. This allows you to branch or merge lines of two different diameters at a single junction point — useful when your system transitions between tubing sizes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhy buy a 3-pack or 5-pack instead of a single piece?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMulti-packs are ideal for larger system builds, multi-branch installations, or keeping spares on hand for maintenance. Ordering a 3-pack or 5-pack generally reduces the per-unit cost and ensures you have replacements available without waiting for a reorder when a fitting needs servicing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your size and quantity above, then add to cart — ships from our US warehouse.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"6mm \/ 1 Pcs","offer_id":52331507220754,"sku":"LJHDG-SPLDP-827x1","price":22.56,"currency_code":"USD","in_stock":true},{"title":"8mm \/ 1 Pcs","offer_id":52331507253522,"sku":"LJHDG-SPLDP-828x1","price":25.55,"currency_code":"USD","in_stock":true},{"title":"6 x 6 x 8 x 8mm \/ 1 Pcs","offer_id":52331507286290,"sku":"LJHDG-SPLDP-829x1","price":26.23,"currency_code":"USD","in_stock":true},{"title":"6mm \/ 3 Pcs","offer_id":52331507319058,"sku":"LJHDG-SPLDP-827x3","price":63.44,"currency_code":"USD","in_stock":true},{"title":"8mm \/ 3 Pcs","offer_id":52331507351826,"sku":"LJHDG-SPLDP-828x3","price":72.2,"currency_code":"USD","in_stock":true},{"title":"6 x 6 x 8 x 8mm \/ 3 Pcs","offer_id":52331507384594,"sku":"LJHDG-SPLDP-829x3","price":74.38,"currency_code":"USD","in_stock":true},{"title":"6mm \/ 5 Pcs","offer_id":52331507417362,"sku":"LJHDG-SPLDP-827x5","price":104.24,"currency_code":"USD","in_stock":true},{"title":"8mm \/ 5 Pcs","offer_id":52331507450130,"sku":"LJHDG-SPLDP-828x5","price":118.93,"currency_code":"USD","in_stock":true},{"title":"6 x 6 x 8 x 8mm \/ 5 Pcs","offer_id":52331507482898,"sku":"LJHDG-SPLDP-829x5","price":122.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Main-06_18a0c66d-1dc4-4524-b771-a666fcdb9a0b.jpg?v=1781019000","url":"https:\/\/homediyer.com\/products\/brass-compression-cross-fitting-4-way-flared-connector-6mm-8mm","provider":"HomeDIYer","version":"1.0","type":"link"}