{"product_id":"heavy-duty-poly-end-plugs-professional-irrigation-line-terminators-bag-of-20","title":"Heavy-Duty Poly End Plugs – Professional Irrigation Line Terminators (Bag of 20)","description":"\u003csection\u003e\n  \u003ch3\u003eHeavy-Duty Poly End Plugs – Professional Irrigation Line Terminators (Bag of 20)\u003c\/h3\u003e\n  \u003cp\u003eMaintaining consistent system pressure requires a secure and permanent seal at the end of every irrigation run. Our Heavy-Duty Poly End Plugs are the professional solution for capping off 13mm, 19mm, and 25mm poly pipe \"spines\" or lateral distribution lines. Engineered with aggressive, high-tensile barbs, these plugs provide a high-pressure \"bite\" that prevents the cap from blowing out during pump cycles. Whether you are finishing a manifold or temporarily sealing a zone during maintenance, these horticultural-grade terminators ensure your nutrient solution stays in the lines and reaches your plants with maximum efficiency.\u003c\/p\u003e\n  \n  \u003chr\u003e\n  \n  \u003cp\u003e\u003cstrong\u003eBest For:\u003c\/strong\u003e Terminating main supply lines, sealing off unused manifold ports, and maintaining system pressure in low-density poly and drip-tube networks.\u003c\/p\u003e\n  \n  \u003ch3\u003eKey Features\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHigh-Pressure Barbed Grip:\u003c\/strong\u003e Features precision-moulded barbs that lock into the pipe wall, providing superior blow-out resistance and a permanent, leak-proof seal without the need for adhesives.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eIndustrial UV-Stabilisation:\u003c\/strong\u003e Manufactured from premium-grade polymers designed to resist the degrading effects of intense HID\/LED grow lighting and the Australian sun, ensuring the plugs won't become brittle over time.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eChemical \u0026amp; Salt Resistant:\u003c\/strong\u003e Built to handle the continuous flow of concentrated mineral salts and pH adjusters common in hydroponic systems without corroding or leaching harmful chemicals.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOpaque Algae Prevention:\u003c\/strong\u003e The deep black pigmentation ensures total light blockage at the end of the line, preventing algae from colonising the dead-end of the pipe and protecting your drippers from organic blockages.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eInstallation-Grade Reliability:\u003c\/strong\u003e Trusted by professional irrigation installers for their durability and consistent performance in both commercial and hobbyist environments.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eValue 20-Piece Bulk Pack:\u003c\/strong\u003e Provides an ample supply for outfitting large facilities or multiple grow zones where numerous line terminations are required.\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003ch3\u003eAvailable Sizes\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003e13mm End Plug (Bag of 20):\u003c\/strong\u003e Ideal for terminating secondary feeder lines and smaller hobbyist irrigation runs.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e19mm End Plug (Bag of 20):\u003c\/strong\u003e The versatile choice for capping off medium-flow distribution lines and manifolds.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e25mm End Plug (Bag of 20):\u003c\/strong\u003e The professional choice for high-volume main supply \"spines\" and commercial-scale lateral pipes.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eSpecifications\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-Impact Polypropylene \/ ABS\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFitting Type:\u003c\/strong\u003e Barbed Compression End Plug\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Low-Density Poly Pipe (LDPE) and Drip Tube\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 20 Pieces per Bag\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eColour:\u003c\/strong\u003e Black (Light-Proof)\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eInstallation \u0026amp; Maintenance Tips\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eThermal Seating:\u003c\/strong\u003e For the easiest installation and the tightest possible seal, dip the end of the poly pipe in a cup of hot water for 15 seconds to soften it. This allows the end plug to slide in fully and \"shrink-wrap\" around the barbs as it cools.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eClean Cuts:\u003c\/strong\u003e Use a sharp pipe cutter to ensure a square, flat cut on the pipe end. This allows the shoulder of the plug to sit flush against the pipe, ensuring a professional finish and maximum leak protection.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFlushing Access:\u003c\/strong\u003e While these plugs provide a permanent seal, they can be removed if necessary. If you need to flush your lines to remove mineral build-up, use these plugs at the end of your runs for easy access to the system interior during seasonal maintenance.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eIdeal For (Uses)\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eManifold Termination:\u003c\/strong\u003e Capping off the end of a 19mm or 25mm \"header\" pipe to force water through the side-outlets.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eZone Management:\u003c\/strong\u003e Quickly sealing off an irrigation line for a grow table that is currently out of rotation.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSystem Expansion:\u003c\/strong\u003e Providing a secure stop-point that can be easily removed later if you decide to extend your irrigation network further.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"Holland Forge","offers":[{"title":"13mm","offer_id":48416338739300,"sku":"5733","price":5.9,"currency_code":"AUD","in_stock":true},{"title":"19mm","offer_id":48416338772068,"sku":"5734","price":8.9,"currency_code":"AUD","in_stock":true},{"title":"25mm","offer_id":48416338804836,"sku":"6501","price":18.9,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/6487\/0244\/files\/ChatGPTImageMay15_2026_01_42_24AM.png?v=1778781320","url":"https:\/\/www.greenhousepolytunnels.com.au\/products\/heavy-duty-poly-end-plugs-professional-irrigation-line-terminators-bag-of-20","provider":"Greenhouse \u0026 Polytunnels","version":"1.0","type":"link"}