{"product_id":"seahawk-flood-drain-fitting-kit-professional-ebb-flow-bulkhead-set","title":"SeaHawk - Flood \u0026 Drain Fitting Kit – Professional Ebb \u0026 Flow Bulkhead Set","description":"\u003csection\u003e\n  \u003ch3\u003eSeaHawk - Flood \u0026amp; Drain Fitting Kit – Professional Ebb \u0026amp; Flow Bulkhead Set\u003c\/h3\u003e\n  \u003cp\u003eThe SeaHawk Flood \u0026amp; Drain Fitting Kit is a robust, reliable solution for constructing or upgrading Ebb and Flow (Flood and Drain) hydroponic systems. Engineered for high-performance nutrient delivery, this kit includes both the inlet and outlet assemblies required to manage tray levels with precision. The smaller 13mm fitting serves as the primary inlet for flooding the tray, while the larger 19mm outlet assembly features an adjustable extension and overflow screen to control the maximum flood height. Built from high-impact, UV-stabilised polymers, these fittings ensure a leak-free seal and long-term durability in the high-humidity, nutrient-rich environments of professional grow rooms.\u003c\/p\u003e\n  \n  \u003chr\u003e\n  \n  \u003cp\u003e\u003cstrong\u003eBest For:\u003c\/strong\u003e DIY Ebb \u0026amp; Flow (Flood and Drain) systems, bottom-feed tray setups, and custom hydroponic reservoir plumbing.\u003c\/p\u003e\n  \n  \u003ch3\u003eKey Features\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDual-Action Plumbing:\u003c\/strong\u003e Includes a dedicated 13mm inlet for controlled tray flooding and a high-volume 19mm outlet for rapid, safe drainage back to the reservoir.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAdjustable Flood Depth:\u003c\/strong\u003e The kit features a stackable extension piece that allows you to set the exact nutrient height for your specific root zone; simply add extra extensions for deeper grow trays.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eClog-Resistant Screens:\u003c\/strong\u003e Equipped with two heavy-duty screens that prevent clay pebbles (hydroton), perlite, or roots from entering the plumbing and causing system-wide blockages.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eWatertight Bulkhead Design:\u003c\/strong\u003e Each fitting is designed to create a secure, compression seal against the grow tray, eliminating the risk of nutrient leaks and floor damage.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eUV \u0026amp; Chemical Resistant:\u003c\/strong\u003e Constructed from inert, horticultural-grade plastics that will not leach chemicals into your solution or become brittle under intense LED or HID lighting.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eModular Compatibility:\u003c\/strong\u003e Designed to fit perfectly with standard 13mm and 19mm poly tubing and flexible PVC hoses commonly used in Australian hydroponic setups.\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003ch3\u003eKit Includes\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003e1 x 13mm Tub Inlet:\u003c\/strong\u003e For connecting to your submersible nutrient pump.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e1 x 19mm Tub Outlet:\u003c\/strong\u003e For high-capacity drainage and overflow protection.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e1 x Height Extension:\u003c\/strong\u003e To customise the flood level of your tray.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e2 x Protective Screens:\u003c\/strong\u003e To keep your plumbing free of debris and substrate.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eSpecifications\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e SeaHawk\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-Impact ABS Plastic\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eInlet Size:\u003c\/strong\u003e 13mm\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOutlet Size:\u003c\/strong\u003e 19mm\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Hydroponic Flood \u0026amp; Drain Systems\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eInstallation \u0026amp; Operation Tips\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePerfect Seal:\u003c\/strong\u003e Ensure your grow tray has clean, burr-free holes before installing the bulkhead fittings. Hand-tighten the nuts firmly to engage the seal without over-stressing the plastic.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOverflow Safety:\u003c\/strong\u003e Always ensure your 19mm drain line is larger than your 13mm feed line. This ensures the tray can drain faster than it fills, preventing accidental overflows if the pump stays on too long.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCustom Height:\u003c\/strong\u003e For deep-water flood techniques or larger pots, multiple extensions can be joined together to raise the overflow point to your desired level.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eIdeal For (Uses)\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eEbb \u0026amp; Flow Systems:\u003c\/strong\u003e The standard plumbing kit for automated tray-based hydroponics.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCustom Reservoir Overflows:\u003c\/strong\u003e Acting as an emergency overflow drain for nutrient mixing tanks.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAquaponics:\u003c\/strong\u003e Suitable for use in small-to-medium fish-integrated grow beds.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"Holland Forge","offers":[{"title":"Default Title","offer_id":48410756350052,"sku":"6395","price":15.9,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/6487\/0244\/files\/ChatGPTImageMay13_2026_11_52_26PM.png?v=1778687565","url":"https:\/\/www.greenhousepolytunnels.com.au\/products\/seahawk-flood-drain-fitting-kit-professional-ebb-flow-bulkhead-set","provider":"Greenhouse \u0026 Polytunnels","version":"1.0","type":"link"}