{"product_id":"pvc-4-way-blue-equal-water-connector-coupling-pressure-pipe-fittings-20mm-90mm","title":"PVC 4-Way Blue Equal Water Connector Coupling Pressure Pipe Fittings 20mm~90mm","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n  \u003cdiv class=\"hdiy-overview\"\u003e\n    \u003ch2\u003ePVC 4-Way Cross Coupling — Reliable Equal Water Connector for Pressure Pipe Systems\u003c\/h2\u003e\n    \u003cp\u003eWhen a plumbing run needs to branch in four directions at once, a poorly fitted connector means leaks, pressure loss, and rework. Whether you're a homeowner building a garden irrigation grid, a contractor laying out a water distribution network, or a maker prototyping a fluid-handling system, you need a cross coupling that holds pressure and seats cleanly every time.\u003c\/p\u003e\n    \u003cp\u003eThese PVC 4-way equal cross couplings are made from Polyvinyl Chloride (PVC) and feature a uniform four-port equal-bore design. Available in inside diameter sizes ranging from 20mm (~¾ in) to 90mm (~3½ in), they are sized to slip-fit standard pressure pipe of the corresponding diameter. The blue color coding aids quick identification in multi-pipe installations.\u003c\/p\u003e\n    \u003cp\u003eTypical use cases include residential and commercial garden drip irrigation systems, above-ground water distribution manifolds, DIY aquaponics and hydroponics plumbing, and workshop fluid-routing projects requiring a 4-way branch point.\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:\u003c\/strong\u003e Designed for standard PVC pressure pipe with matching inside diameter (20 \/ 25 \/ 32 \/ 40 \/ 50 \/ 63 \/ 75 \/ 90 mm). Confirm pipe OD and wall schedule before ordering.\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-features\"\u003e\n    \u003ch2\u003e✅ Key Features of These PVC 4-Way Cross Couplings\u003c\/h2\u003e\n    \u003cul class=\"hdiy-list\"\u003e\n      \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔵\u003c\/span\u003e \u003cstrong\u003eEqual 4-Port Design\u003c\/strong\u003e — All four outlets share the same bore diameter, ensuring balanced flow distribution across every branch without reducers or adapters.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e \u003cstrong\u003ePVC Construction\u003c\/strong\u003e — Polyvinyl Chloride resists corrosion, scale buildup, and chemical attack from common water treatment additives, extending service life in wet environments.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e \u003cstrong\u003eWide Size Range\u003c\/strong\u003e — Eight inside diameter options from 20mm to 90mm (approx. ¾ in to 3½ in) cover the most common residential and light-commercial pipe schedules.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🎨\u003c\/span\u003e \u003cstrong\u003eBlue Color Coding\u003c\/strong\u003e — The distinctive blue finish makes these fittings easy to identify at a glance in multi-line plumbing runs, reducing mis-connection errors during installation.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e \u003cstrong\u003eFlexible Pack Quantities\u003c\/strong\u003e — Available in 1, 3, 5, or 10-piece packs so you can order exactly what your project requires without overstocking.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚙️\u003c\/span\u003e \u003cstrong\u003ePressure Pipe Rated\u003c\/strong\u003e — Engineered for use in pressurized water systems; suitable for irrigation mains, distribution headers, and similar low-to-medium pressure applications.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-table-wrap\"\u003e\n    \u003ch2\u003e📐 Technical Specifications — PVC 4-Way Cross Coupling\u003c\/h2\u003e\n    \u003ctable\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003ePolyvinyl Chloride (PVC)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eColor\u003c\/th\u003e\n\u003ctd\u003eBlue\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eConnection Type\u003c\/th\u003e\n\u003ctd\u003e4-Way Equal Cross (slip-fit socket)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eInside Diameter (ID)\u003c\/th\u003e\n\u003ctd\u003e20 \/ 25 \/ 32 \/ 40 \/ 50 \/ 63 \/ 75 \/ 90 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eWall Thickness\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003ePressure Rating\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003ePacking Quantity\u003c\/th\u003e\n\u003ctd\u003e1 \/ 3 \/ 5 \/ 10 Pcs (select above)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eIrrigation, water distribution, plumbing, DIY fluid systems\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-faq\"\u003e\n    \u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow do I choose the right size for my pipe?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eSelect the size that matches the \u003cstrong\u003einside diameter (ID)\u003c\/strong\u003e of your existing pipe. Common residential irrigation pipe runs 20mm–32mm; larger distribution mains typically use 40mm–90mm. If you're unsure, measure the pipe's outer diameter and subtract twice the wall thickness to get the ID, or check the pipe's printed markings.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eCan these fittings handle pressurized water systems?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. These couplings are designed for pressure pipe applications such as irrigation mains and water distribution headers. For your specific working pressure, verify the fitting's rated pressure against your system's operating pressure before installation. PVC fittings generally perform well in low-to-medium pressure water systems.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eAre these fittings corrosion-resistant?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003ePVC is inherently resistant to rust and corrosion, making it well-suited for outdoor irrigation and water supply applications. It also resists scale buildup and is unaffected by most common water treatment chemicals such as chlorine at typical municipal concentrations.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat pipe standards or schedules are these compatible with?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThese fittings are designed for standard PVC pressure pipe with matching inside diameters (20–90mm). Compatibility depends on the pipe's outside diameter and wall thickness. Always dry-fit before cementing to confirm the socket seats correctly. If you are working with metric DIN, AS\/NZS, or other regional pipe standards, verify the OD matches before ordering.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eDo I need solvent cement to install these fittings?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eFor permanent, leak-free joints in pressurized systems, PVC solvent cement (PVC glue) is strongly recommended. Clean and dry both the pipe end and the fitting socket, apply primer if required by your local code, then apply cement and push the pipe firmly into the socket with a slight twist. Allow adequate cure time before pressurizing.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhich pack size should I order for a typical irrigation project?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eFor a small garden drip system with a few branch points, the 1 or 3-piece pack is usually sufficient. For larger grid-style irrigation layouts or workshop plumbing runs with multiple 4-way junctions, the 5 or 10-piece pack offers better value per fitting. Count your planned cross-junction points before ordering to avoid multiple shipments.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eCan these be used for applications other than water?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003ePVC fittings are primarily rated for water and certain non-aggressive fluids. They are not recommended for compressed air systems, flammable liquids, or highly concentrated chemical solutions. For non-water applications, confirm PVC's chemical compatibility with the specific fluid before use.\u003c\/p\u003e\u003c\/div\u003e\n    \u003c\/details\u003e\n\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-cta\"\u003e\n    🛒 Select your size (inside diameter) and packing quantity above, then add to cart.\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\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 size for my pipe?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Select the size that matches the inside diameter (ID) of your existing pipe. Common residential irrigation pipe runs 20mm–32mm; larger distribution mains typically use 40mm–90mm. 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