{"product_id":"seahawk-grow-tent-range-premium-rectangular-r-extra-high-rh-indoor-cultivation-enclosures","title":"SeaHawk - Grow Tent Range – Premium Rectangular (R) \u0026 Extra High (RH) Indoor Cultivation Enclosures","description":"\u003csection\u003e\n\u003ch3\u003eSeaHawk - Grow Tent Range – Premium Rectangular (R) \u0026amp; Extra High (RH) Indoor Cultivation Enclosures\u003c\/h3\u003e\n\u003cp\u003eMaximize your indoor cultivation floor plan with the highly versatile SeaHawk Rectangular Grow Tent Range. Engineered for growers demanding superior accessibility, organized row management, and maximum canopy footprint efficiency, these rectangular layouts offer a distinct advantage over standard square designs. Every tent in this professional, economical package is constructed entirely from an ultra-thick, light-proof Advanced Diffusion Foil (ADF) reflective material that guarantees 100% complete opacity for absolute photoperiod security. The inner surface of the ADF lining features a refined, pressed \"diamond-like\" structure that serves two critical purposes: it diffuses raw light in multiple directions to eliminate harsh shadow zones beneath the canopy, and it assists in uniform heat transmission across the growing environment. Supported by a rigid, high-load steel skeleton, the SeaHawk Rectangular range provides an uncompromising foundation for high-yielding multi-light arrays.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eBest For:\u003c\/strong\u003e Linear row crop management, multi-fixture commercial LED\/HID setups, aisle-accessible cultivation bays, automated high-density drip networks, and large-scale industrial facility scaling.\u003c\/p\u003e\n\u003ch3\u003eSeaHawk Model Configuration Guide\u003c\/h3\u003e\n\u003cp\u003eUnderstanding SeaHawk's smart engineering model codes makes selecting the right enclosure straightforward:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrefix Number:\u003c\/strong\u003e Indicates the total tent width in centimetres (e.g., 145 = 145cm, 580 = 580cm).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eR:\u003c\/strong\u003e Rectangular Shape footprint configuration, ideal for side-by-side lighting layouts and easy center-aisle crop maintenance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eH:\u003c\/strong\u003e Extra High vertical profile, stretching the ceiling height to 230cm to create a vital thermal buffer zone for tall crops and high-power fixtures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e+ \/ Double-Depth Variants (e.g., 435R+, 450RH):\u003c\/strong\u003e Expanded depth profiling that doubles the standard footprint width to handle massive dual-row commercial production matrices.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Features Across the Rectangular Range\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Diffusion Foil (ADF) Lining:\u003c\/strong\u003e Wrapped internally with a premium diamond-textured ADF skin that actively scatters light to maximize PAR distribution while optimizing heat dissipation profiles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial-Grade Light-Tight Shell:\u003c\/strong\u003e Built from heavy-duty exterior canvas with reinforced double-stitched seams and robust zippers, ensuring total opacity and eliminating external light leaks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Structural Skeleton:\u003c\/strong\u003e Constructed with thick steel support poles and robust corner connections, creating a stable ceiling frame capable of safely holding heavy carbon filters, inline fans, and commercial light fixtures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Socked Ventilation \u0026amp; Cable Ports:\u003c\/strong\u003e Outfitted with dual-layer adjustable draw-string socks for high-volume extraction ducting, alongside tight-cinching utility ports for clean, light-proof routing of electrical lines and probe sensors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproof Removable Flood Tray:\u003c\/strong\u003e Includes a thick, insertable floor liner designed to catch unexpected nutrient spills, plumbing drips, or reservoir overflows, protecting your floors from water and salt damage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Range Specifications Matrix\u003c\/h3\u003e\n\u003ctable style=\"border-collapse: collapse; width: 100%; text-align: left; height: 274.313px;\" cellpadding=\"5\" border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: rgb(242, 242, 242); height: 19.5938px;\"\u003e\n\u003cth style=\"height: 19.5938px;\"\u003eModel Variant\u003c\/th\u003e\n\u003cth style=\"height: 19.5938px;\"\u003eWidth\u003c\/th\u003e\n\u003cth style=\"height: 19.5938px;\"\u003eDepth\u003c\/th\u003e\n\u003cth style=\"height: 19.5938px;\"\u003eHeight\u003c\/th\u003e\n\u003cth style=\"height: 19.5938px;\"\u003eGeometric Footprint\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cstrong\u003eGrow Tent 145R\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e145cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e80cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e200cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003eRectangular Standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cstrong\u003eGrow Tent 145RH\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e145cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e80cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e230cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003eRectangular Extra High\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cstrong\u003eGrow Tent 240R\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e240cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e120cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e200cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003eRectangular Standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cstrong\u003eGrow Tent 240RH\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e240cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e120cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e230cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003eRectangular Extra High\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cstrong\u003eGrow Tent 290R\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e290cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e145cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e200cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003eRectangular Standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cstrong\u003eGrow Tent 290RH\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e290cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e145cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e230cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003eRectangular Extra High\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cstrong\u003eGrow Tent 300R\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e300cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e150cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e200cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003eRectangular Standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cstrong\u003eGrow Tent 300RH\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e300cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e150cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e230cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003eRectangular Extra High\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cstrong\u003eGrow Tent 435R\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e435cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e145cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e230cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003eRectangular Standard Extended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cstrong\u003eGrow Tent 435R+\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e435cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e290cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e230cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003eRectangular Double Depth\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cstrong\u003eGrow Tent 450R\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e450cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e150cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e230cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003eRectangular Standard Extended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cstrong\u003eGrow Tent 450RH\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e450cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e300cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e230cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003eRectangular Extra High \/ Depth\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e\u003cstrong\u003eGrow Tent 580RH\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e580cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e290cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e230cm\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003eCommercial Flagship Extra High\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eNursery Layout \u0026amp; Environmental Optimization Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSizing Linear Automated Fluid Dynamics:\u003c\/strong\u003e Long, rectangular canopy rows require proper hydraulic pressure distribution to avoid nutrient delivery drop-offs. For mid-sized rectangular layouts (145R through 300RH), drive your drip loops with a **Plont PPH 1100 or PPH 1500 Submersible Pump**. For large commercial footprints (435R up to the massive 580RH), use a commercial-grade **Plont PPH 2500 or PPH 3000 Submersible Pump** to guarantee sharp, even line pressure across extended, multi-pot feeding matrices.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCanopy Substrate \u0026amp; Media Configuration:\u003c\/strong\u003e Arrange your breathable fabric aeration pots in clear, parallel rows with an accessible center aisle. Pack pots with a high-porosity 70\/30 blend of loose **Coco Coir** and **Horticultural Perlite**. The diamond-structured ADF lining works perfectly with linear layouts, bouncing light sideways into the aisles to ensure complete illumination of outer lower branch nodes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManaging Air Exchange \u0026amp; Thermal Stratification:\u003c\/strong\u003e Rectangular structures can develop dead air pockets at the far ends if ventilation is under-specified. Install your inline extraction fan and activated carbon filter centrally, or run multi-point intake ducting. In Extra High (RH) models, utilize the additional 30cm of vertical headspace to gather built-up heat away from your fixtures, venting it quickly through the upper dual-sock ports before it impacts canopy temperatures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoutine Zipper \u0026amp; Canvas Maintenance Loop:\u003c\/strong\u003e Large commercial layouts mean longer zipper paths and frequent access. Prevent zipper jamming caused by airborne dust and high humidity by clearing out loose threads and applying a dry silicone spray or zipper wax every few months. This protects your photoperiod seal and keeps sliders moving smoothly through intense cycles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIdeal For (Uses)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAisle-Accessible Hobby \u0026amp; Commercial Growing:\u003c\/strong\u003e The shallow depth profiles of the 145R, 240R, and 300R models let you reach every single plant easily without having to move pots around or squeeze between canvas walls.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Light Linear Production:\u003c\/strong\u003e Perfect for hanging multiple LED bars or HID fixtures in a perfect line, maximizing light distribution along rectangular propagation tables or rolling benches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial-Scale Commercial Facilities:\u003c\/strong\u003e Utilizing massive footprints like the 435R+, 450RH, and 580RH as dedicated, self-contained flowering zones or large-scale phenotype hunting spaces within a commercial warehouse setup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"Holland Forge","offers":[{"title":"Grow Tent 145R","offer_id":48428540526692,"sku":"8433","price":230.99,"currency_code":"AUD","in_stock":true},{"title":"Grow Tent 145RH","offer_id":48428540559460,"sku":"4410","price":284.9,"currency_code":"AUD","in_stock":true},{"title":"Grow Tent 240R","offer_id":48428540592228,"sku":"8437","price":427.9,"currency_code":"AUD","in_stock":true},{"title":"Grow Tent 240RH","offer_id":48428540624996,"sku":"4412","price":380.99,"currency_code":"AUD","in_stock":true},{"title":"Grow Tent 290R","offer_id":48428540657764,"sku":"8438","price":484.9,"currency_code":"AUD","in_stock":true},{"title":"Grow Tent 290RH","offer_id":48428540690532,"sku":"4094","price":401.99,"currency_code":"AUD","in_stock":true},{"title":"Grow Tent 300R","offer_id":48428540723300,"sku":"4413","price":399.9,"currency_code":"AUD","in_stock":true},{"title":"Grow Tent 300RH","offer_id":48428540756068,"sku":"4414","price":413.99,"currency_code":"AUD","in_stock":true},{"title":"Grow Tent 435R","offer_id":48428540788836,"sku":"4440","price":572.99,"currency_code":"AUD","in_stock":true},{"title":"Grow Tent 435R+","offer_id":48428540821604,"sku":"4441","price":1041.99,"currency_code":"AUD","in_stock":true},{"title":"Grow Tent 450R","offer_id":48428540854372,"sku":"4417","price":715.9,"currency_code":"AUD","in_stock":true},{"title":"Grow Tent 450RH","offer_id":48428540887140,"sku":"4416","price":864.9,"currency_code":"AUD","in_stock":true},{"title":"Grow Tent 580RH","offer_id":48428540919908,"sku":"4693","price":1273.9,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/6487\/0244\/files\/ChatGPTImageMay18_2026_08_24_32PM.png?v=1779107092","url":"https:\/\/www.greenhousepolytunnels.com.au\/products\/seahawk-grow-tent-range-premium-rectangular-r-extra-high-rh-indoor-cultivation-enclosures","provider":"Greenhouse \u0026 Polytunnels","version":"1.0","type":"link"}