{"product_id":"hydroponic-grommets-airline-seal-8mm-25mm","title":"Hydroponic Grommets | 8mm, 13mm, 19mm \u0026 25mm Airline Seal Fittings (Sold Individually)","description":"\u003cp\u003eRunning an airline through the wall of a hydroponic reservoir without a grommet is a leak waiting to happen. The hole edges cut into the tubing over time, the seal degrades, and nutrient solution finds its way out. Hydroponic grommets solve this with a simple, permanent fix. Press one into a drilled hole, push your airline or tubing through the centre, and the flexible rubber compresses around it to form a watertight, airtight seal that holds for the life of your system.\u003c\/p\u003e\u003cp\u003eAvailable in 8mm, 13mm, 19mm, and 25mm sizes and sold individually so you only buy what you need, these grommets cover every common airline and tubing size used in hydroponic aeration and irrigation setups. The 8mm is ideal for standard airline tubing running to air stones and diffusers. The 13mm and 19mm suit irrigation tubing pass-throughs and manifold connections. The 25mm handles larger supply lines and high-flow connections in commercial or multi-plant systems.\u003c\/p\u003e\u003ch2\u003eHow It Works\u003c\/h2\u003e\u003cp\u003eDrill a hole in your tank, reservoir, or system wall to match the grommet's outer diameter. Press the grommet firmly into the hole. The flexible rubber body deforms slightly under pressure to grip the container wall and create a tight seal. Push your airline or tubing through the grommet's internal channel. The elastic compression of the rubber grips the tubing securely, preventing pull-out and forming a watertight seal around the penetration point. No adhesive, no clamps, no tools required beyond a drill.\u003c\/p\u003e\u003ch2\u003eKey Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour sizes covering all common airline and tubing diameters.\u003c\/strong\u003e 8mm for standard airline, 13mm and 19mm for irrigation tubing, and 25mm for larger supply lines and high-flow connections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSold individually for flexible purchasing.\u003c\/strong\u003e Buy exactly the sizes and quantities you need without paying for a pack of sizes you won't use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCreates watertight and airtight seals.\u003c\/strong\u003e Flexible rubber compression seals around both the container wall and the tubing, preventing leaks and air loss at penetration points.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtects tubing from sharp hole edges.\u003c\/strong\u003e The smooth internal channel prevents the container wall from cutting into or abrading airline and irrigation tubing over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy press-fit installation.\u003c\/strong\u003e No adhesive or specialist tools required. Installs in seconds with a correctly sized drill hole.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuitable for tanks, reservoirs, and system walls.\u003c\/strong\u003e Compatible with any container material that can be drilled, including plastic reservoirs, grow trays, and storage tanks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable rubber\/EPDM construction.\u003c\/strong\u003e Resistant to nutrient solution, moisture, and the temperature variation of indoor grow environments.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eVariant Guide\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e8mm Grommet.\u003c\/strong\u003e Standard size for airline tubing used with air pumps and air stones in DWC and aeration systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e13mm Top Hat Grommet.\u003c\/strong\u003e Top hat profile provides additional sealing surface against the container wall. Suits 13mm irrigation tubing pass-throughs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e19mm Antelco Grommet.\u003c\/strong\u003e Antelco-compatible design for 19mm tubing connections and manifold fittings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e25mm Grommet.\u003c\/strong\u003e Large diameter for high-flow supply lines and 25mm irrigation tubing connections.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAirline installation through hydroponic reservoir walls\u003c\/li\u003e\n\u003cli\u003eAir pump and air stone tubing pass-throughs\u003c\/li\u003e\n\u003cli\u003eIrrigation tubing penetrations in tanks and grow trays\u003c\/li\u003e\n\u003cli\u003eDIY hydroponic system builds and modifications\u003c\/li\u003e\n\u003cli\u003eGrow room aeration system plumbing\u003c\/li\u003e\n\u003cli\u003eCommercial reservoir and tank fitting installations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSizes.\u003c\/strong\u003e 8mm \/ 13mm \/ 19mm \/ 25mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial.\u003c\/strong\u003e Flexible rubber \/ EPDM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation.\u003c\/strong\u003e Press-fit into drilled hole\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction.\u003c\/strong\u003e Airline sealing and tank penetration fitting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication.\u003c\/strong\u003e Hydroponics, aeration, irrigation systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnvironment.\u003c\/strong\u003e Indoor, greenhouse, commercial systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight.\u003c\/strong\u003e Approx. 0.01 to 0.05 kg per unit\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently Bought Together\u003c\/h2\u003e\u003cp\u003eGrommets are most commonly used when installing aeration lines into hydroponic reservoirs. The \u003ca href=\"\/products\/resun-12-outlet-air-pump-3000lph-hydroponic-dwc\"\u003eRESUN 12 Outlet Air Pump\u003c\/a\u003e and \u003ca href=\"\/products\/resun-6-outlet-air-pump-1320lph-hydroponic-dwc\"\u003eRESUN 6 Outlet Air Pump\u003c\/a\u003e both require airline tubing to be routed into your reservoir, making an 8mm grommet the ideal companion for a clean, leak-free installation. For larger tubing pass-throughs, pair with \u003ca href=\"\/products\/hydroponic-tub-outlet-13mm-19mm-25mm\"\u003eHydroponic Tub Outlet Fittings\u003c\/a\u003e in 13mm, 19mm, or 25mm for a complete sealed connection point, and run your lines using \u003ca href=\"\/products\/hydroponic-soft-tube-kink-free-irrigation-hose-4mm-25mm-australia\"\u003eHydroponic Soft Tube\u003c\/a\u003e for kink-free, flexible irrigation lines.\u003c\/p\u003e","brand":"Apex Grow","offers":[{"title":"8mm Grommet (Single)","offer_id":43218291785791,"sku":null,"price":4.95,"currency_code":"AUD","in_stock":true},{"title":"13mm Top Hat Grommet (Single)","offer_id":43218291818559,"sku":null,"price":4.95,"currency_code":"AUD","in_stock":true},{"title":"19mm Antelco Grommet (Single)","offer_id":43218291851327,"sku":null,"price":4.95,"currency_code":"AUD","in_stock":true},{"title":"25mm Grommet (Single)","offer_id":43218291884095,"sku":null,"price":5.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/6898\/8479\/files\/Grommets_1000x1000_Grey-600x600.png?v=1777951801","url":"https:\/\/apexgrow.com.au\/products\/hydroponic-grommets-airline-seal-8mm-25mm","provider":"Apex Grow","version":"1.0","type":"link"}