{"product_id":"can-rk-fan-4-speed","title":"Can RK Fan 4-Speed – Grow Tent Extraction Fan","description":"\u003ch2\u003eThe RK Fan's plastic centrifugal design, with a built-in 4-speed switch instead of a voltage dial\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eCan RK(L)S Fan\u003c\/strong\u003e is the 4-speed version of the Can RK range — the same economic, maintenance-free plastic-bodied backward-curved centrifugal extractor, but with a \u003cstrong\u003e4-speed switch built in\u003c\/strong\u003e rather than a voltage-controllable motor. It's not compatible with a standard voltage controller, so speed is set directly at the fan, and it carries the same thermal overheat protection as the rest of the RK family.\u003c\/p\u003e\n\u003ch3\u003eKey Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in 4-speed switch\u003c\/strong\u003e gives four fixed speed settings without needing a separate controller.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal overheat protection\u003c\/strong\u003e switches the motor off automatically if it runs too hot.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable plastic housing\u003c\/strong\u003e, resistant and maintenance-free.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackward-curved centrifugal design\u003c\/strong\u003e for solid static pressure through ducting and filters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple setup\u003c\/strong\u003e — no controller wiring, just select a speed at the fan.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNot every grow space needs stepless speed control, and a fan with fixed switch speeds is simpler to wire and set up when a controller isn't wanted. The 4-speed switch gives enough range to match airflow to the room across the different stages of a grow without any extra equipment.\u003c\/p\u003e\n\u003ch3\u003eHow to Use\u003c\/h3\u003e\n\u003cp\u003eWire the fan directly to mains power and select the speed setting that clears the room's air volume several times an hour. Mount with the airflow arrow pointing away from the room, and keep the intake grille clear of dust to avoid tripping the thermal cut-out. Not compatible with a standard voltage-based speed controller.\u003c\/p\u003e\n\u003cdiv class=\"hcs-specs\"\u003e\u003cul\u003e\n\u003cli\u003eDesign: backward-curved centrifugal, plastic housing\u003c\/li\u003e\n\u003cli\u003eSpeed control: built-in 4-speed switch (not voltage-controllable)\u003c\/li\u003e\n\u003cli\u003eProtection: built-in thermal overheat switch\u003c\/li\u003e\n\u003cli\u003eAirflow range: 270-830 m³\/h\u003c\/li\u003e\n\u003cli\u003eSizes: 100mm-200mm (4\"-8\")\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e","brand":"Can-Fan","offers":[{"title":"4\" (270m3\/hr)","offer_id":53798869008650,"sku":"ENV-CAN2-011-01","price":160.99,"currency_code":"GBP","in_stock":true},{"title":"6\" (800m3\/hr)","offer_id":53798869041418,"sku":"ENV-CAN2-011-02","price":200.99,"currency_code":"GBP","in_stock":true},{"title":"8\" (830m3\/hr)","offer_id":53798869074186,"sku":"ENV-CAN2-011-03","price":200.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/can-rk-fan-4-speed-1.jpg?v=1790169356","url":"https:\/\/hydrocropshop.co.uk\/products\/can-rk-fan-4-speed","provider":"Hydro Crop Shop","version":"1.0","type":"link"}