{"product_id":"heavy-duty-black-poly-tubing-25mm-professional-irrigation-line","title":"Heavy-Duty Black Poly Tubing – 25mm Professional Irrigation Line","description":"\u003csection\u003e\n  \u003ch3\u003eHeavy-Duty Black Poly Tubing – 25mm Professional Irrigation Line\u003c\/h3\u003e\n  \u003cp\u003eEfficient nutrient delivery is the heartbeat of any high-performance hydroponic or garden system. Our Heavy-Duty Black Poly Tubing is the industry-standard choice for constructing reliable main delivery lines and custom manifold systems. With a 25mm diameter, this tubing provides the high-volume flow rate necessary for larger reservoirs and multi-site setups. Engineered for durability, the opaque black construction is specifically designed to block all light penetration, effectively preventing algae growth within your nutrient solution—a critical factor in maintaining root health and preventing dripper blockages. Flexible yet kink-resistant, this tubing allows for clean, professional plumbing runs in both indoor grow rooms and outdoor greenhouses.\u003c\/p\u003e\n  \n  \u003chr\u003e\n  \n  \u003cp\u003e\u003cstrong\u003eBest For:\u003c\/strong\u003e Main nutrient delivery lines, constructing DIY manifold systems, connecting high-flow submersible pumps, and large-scale run-to-waste or recirculating systems.\u003c\/p\u003e\n  \n  \u003ch3\u003eKey Features\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAlgae-Resistant Opaque Finish:\u003c\/strong\u003e The deep black pigmentation ensures total light-blockage, keeping your nutrient solution sterile and preventing the bio-film build-up that can lead to root pathogens and clogged emitters.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHigh-Flow 25mm Diameter:\u003c\/strong\u003e Provides the capacity needed for high-pressure pumps and large-scale irrigation layouts, ensuring consistent pressure across every plant in your system.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eUV-Stabilised Longevity:\u003c\/strong\u003e Manufactured to withstand intense UV radiation from HID\/LED lighting and direct sunlight, ensuring the tubing won't become brittle, crack, or leak over time.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eKink-Resistant Flexibility:\u003c\/strong\u003e Specifically formulated to offer the perfect balance between rigidity for pressure handling and flexibility for navigating around grow tents, reservoirs, and benching.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eStandard Fitting Compatibility:\u003c\/strong\u003e Designed to fit all standard 25mm barbed irrigation fittings, including tees, elbows, and poly-to-thread connectors, for a leak-free, professional installation.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFood-Grade \u0026amp; Inert:\u003c\/strong\u003e Made from high-quality polyethylene that will not leach harmful chemicals into your nutrient solution, ensuring the purity of your harvest.\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003ch3\u003eAvailable Lengths\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003e25mm x 10 Metre Roll:\u003c\/strong\u003e Ideal for small-to-medium grow tent setups or individual reservoir connections.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e25mm x 30 Metre Roll:\u003c\/strong\u003e The best value for commercial facilities, large greenhouses, or complex multi-room irrigation builds.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eSpecifications\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDiameter:\u003c\/strong\u003e 25mm (Internal Diameter)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Low-Density Polyethylene (LDPE)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eColour:\u003c\/strong\u003e Opaque Black (Light-Proof)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePressure Rating:\u003c\/strong\u003e Optimized for horticultural irrigation pumps\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Hydroponics, Aquaponics, and Drip Irrigation Systems\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\u003eEase of Fitting:\u003c\/strong\u003e If you find the tubing difficult to push onto barbed fittings, simply dip the end of the pipe in a cup of hot water for 30 seconds to soften it for a perfect, easy seal.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eClean Cuts:\u003c\/strong\u003e Always use a dedicated pipe cutter or a very sharp blade to ensure a square, flat cut. This prevents leaks and ensures the tubing sits flush against the internal stop of your fittings.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSystem Flush:\u003c\/strong\u003e After installation and before connecting your drippers, run fresh water through the 25mm line to flush out any plastic burrs or debris from the construction process.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eIdeal For (Uses)\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHeader Pipes:\u003c\/strong\u003e Acting as the \"spine\" of your irrigation system from which smaller micro-tubing lines are branched off.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDrainage Lines:\u003c\/strong\u003e High-volume return lines for top-feed systems or AutoPot-style drainage setups.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eWater Transfer:\u003c\/strong\u003e Quickly moving large volumes of water or nutrient solution between mixing tanks and storage reservoirs.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"Holland Forge","offers":[{"title":"25mm x 10 Metre","offer_id":48410695008356,"sku":"7440","price":47.9,"currency_code":"AUD","in_stock":true},{"title":"25mm x 30 Metre","offer_id":48410695041124,"sku":"4071","price":128.9,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/6487\/0244\/files\/ChatGPTImageMay13_2026_10_36_34PM.png?v=1778683116","url":"https:\/\/www.greenhousepolytunnels.com.au\/products\/heavy-duty-black-poly-tubing-25mm-professional-irrigation-line","provider":"Greenhouse \u0026 Polytunnels","version":"1.0","type":"link"}