{"product_id":"4mm-hydroponic-adaptors-joiners","title":"4mm Hydroponic Adaptors \u0026 Joiners | Drip Irrigation Tubing Connectors (Pack of 100)","description":"\u003cp\u003eWhen you're building or expanding a drip irrigation system, the fittings that connect your tubing are just as important as the tubing itself. A loose connection or incompatible adaptor means nutrient solution on your floor instead of in your root zone. These 4mm hydroponic adaptors and joiners are designed to eliminate that problem, providing secure, leak-resistant connections between feeder lines, manifolds, and system components in any hydroponic or drip irrigation setup.\u003c\/p\u003e\u003cp\u003eAvailable in three configurations to suit different connection requirements, each option is sold in packs of 100, making them ideal for growers building multi-plant systems, replacing worn fittings across an existing setup, or stocking up for ongoing maintenance. At 4mm, these fittings are compatible with the standard feeder line size used in most hydroponic drip systems, including those running water rings, drippers, and inline emitters.\u003c\/p\u003e\u003ch2\u003eVariant Guide\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4mm Adaptor \u0026amp; Joiner (Pack of 100).\u003c\/strong\u003e Connects two sections of 4mm tubing end to end. Used for line extension, repair, and system modification. Maintains continuous, uninterrupted flow through the irrigation line.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4mm Adaptor Quick Thread (Pack of 100).\u003c\/strong\u003e Connects 4mm tubing to threaded outlets on manifolds, irrigation hubs, and system ports. Quick-fit design allows easy installation and removal without tools, making it ideal for systems that require regular reconfiguration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4mm Barbed Joiner (Pack of 100).\u003c\/strong\u003e Push-fit barbed connector for 4mm tubing. The barbed design grips the inner wall of the tubing to create a tight, leak-resistant seal suited to stable, long-term connections in permanent irrigation layouts.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eKey Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree connection types in one range.\u003c\/strong\u003e Straight joiners, quick-thread adaptors, and barbed joiners cover every 4mm connection scenario in a single product family.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSold in packs of 100 for full system builds.\u003c\/strong\u003e Enough fittings to set up, expand, or fully re-plumb a multi-plant drip irrigation system without running short mid-build.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeak-resistant connection design.\u003c\/strong\u003e Each fitting type is engineered to maintain a secure seal under normal hydroponic system operating pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible with standard 4mm irrigation tubing.\u003c\/strong\u003e Fits the feeder line size used across most hydroponic drip systems, water rings, and inline emitters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable UV-stabilised polymer construction.\u003c\/strong\u003e Withstands the humidity, nutrient exposure, and temperature variation of indoor grow rooms and greenhouse environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy push-fit and threaded installation.\u003c\/strong\u003e No specialist tools required. Fittings install by hand for fast system builds and quick repairs.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHydroponic drip irrigation system builds and expansion\u003c\/li\u003e\n\u003cli\u003eNutrient delivery feeder line connection and repair\u003c\/li\u003e\n\u003cli\u003eConnection to pumps, manifolds, and irrigation hubs\u003c\/li\u003e\n\u003cli\u003eIndoor grow room and grow tent irrigation setups\u003c\/li\u003e\n\u003cli\u003eGreenhouse fertigation system plumbing\u003c\/li\u003e\n\u003cli\u003eCommercial multi-site drip irrigation layouts\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize.\u003c\/strong\u003e 4mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack Size.\u003c\/strong\u003e 100 units per pack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Types.\u003c\/strong\u003e Barbed joiner \/ straight adaptor \u0026amp; joiner \/ quick-thread adaptor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial.\u003c\/strong\u003e UV-stabilised polymer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication.\u003c\/strong\u003e Hydroponics, drip irrigation, fertigation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction.\u003c\/strong\u003e Tubing connection, extension, system integration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironment.\u003c\/strong\u003e Indoor, greenhouse, commercial systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack Weight.\u003c\/strong\u003e Approx. 0.15 to 0.25 kg\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently Bought Together\u003c\/h2\u003e\u003cp\u003eThese 4mm adaptors and joiners are designed to work alongside the rest of your irrigation system. Run your feeder lines using \u003ca href=\"\/products\/hydroponic-soft-tube-kink-free-irrigation-hose-4mm-25mm-australia\"\u003eHydroponic Soft Tube\u003c\/a\u003e in 4mm through 25mm for kink-free, flexible irrigation lines that pair directly with these fittings. Use \u003ca href=\"\/products\/hydroponic-cross-pipe-fitting-australia\"\u003eHydroponic Cross Pipe Fittings\u003c\/a\u003e to split your irrigation line into four directions simultaneously, ideal for multi-plant layouts and manifold-style drip systems. Add \u003ca href=\"\/products\/quick-action-valve-pack-20-hydroponic-13mm-19mm-25mm\"\u003eQuick Action Valves\u003c\/a\u003e to individual feed lines for per-plant flow control, and power the whole system with the \u003ca href=\"\/products\/rio-hf-water-pump-hydroponic-submersible-990-7300-lph-australia\"\u003eRio HF Submersible Water Pump\u003c\/a\u003e.\u003c\/p\u003e","brand":"Apex Grow","offers":[{"title":"4mm Adaptor \u0026 Joiner (100)","offer_id":43218204753983,"sku":null,"price":19.95,"currency_code":"AUD","in_stock":true},{"title":"4mm Adaptor Quick Thread (100)","offer_id":43218204786751,"sku":null,"price":19.95,"currency_code":"AUD","in_stock":true},{"title":"4mm Barbed Joiner (100)","offer_id":43218204819519,"sku":null,"price":19.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/6898\/8479\/files\/Adaptors_1000x1000_Grey-1-600x600_1.png?v=1777949938","url":"https:\/\/apexgrow.com.au\/products\/4mm-hydroponic-adaptors-joiners","provider":"Apex Grow","version":"1.0","type":"link"}