{"product_id":"growmax-minimax-75-gpd-reverse-osmosis-unit","title":"GrowMax Minimax 75 GPD Reverse Osmosis Unit – Mini RO System","description":"\u003ch2\u003eA compact reverse osmosis unit for small tents, propagators and balconies\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eGrowMax Minimax 75 GPD\u003c\/strong\u003e is GrowMax's smallest reverse osmosis system, built for growers who don't need a full-size unit — small tents (80x80cm and 90x60cm sizes), propagators, balconies and outdoor containers. It still strips the salts, chlorine and sediment that push your starting EC and pH around before you've mixed a single feed.\u003c\/p\u003e\n\u003ch3\u003eKey Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact footprint\u003c\/strong\u003e — sized for small grow spaces rather than a utility room\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemoves up to 95%\u003c\/strong\u003e of salts, heavy metals and other dissolved contaminants\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemoves up to 99% of chlorine\u003c\/strong\u003e and reduces sediment above 5 microns instantly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic shut-off\u003c\/strong\u003e — the built-in valve stops water once the reservoir is full\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure gauge and flow limiter\u003c\/strong\u003e — keeps the unit running within its rated window\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSmall-space growers still deal with the same hard-water problems as a full room — shifting EC, stubborn pH and mineral build-up — just without the budget or bench space for a full-size RO system.\u003c\/p\u003e\n\u003ch3\u003eHow to Use\u003c\/h3\u003e\n\u003cp\u003eConnect to a cold mains supply and let the built-in flow limiter and shut-off valve do the rest. Change the \u003cstrong\u003e75 GPD membrane roughly once a year\u003c\/strong\u003e, and the GAC pre-filter every 3–6 months depending on use and incoming water quality.\u003c\/p\u003e\n\u003cdiv class=\"hcs-specs\"\u003e\u003cul\u003e\n\u003cli\u003eOutput: up to 10 L\/h of pure water\u003c\/li\u003e\n\u003cli\u003eMembrane: 75 GPD\u003c\/li\u003e\n\u003cli\u003eRemoves: up to 95% salts and heavy metals, up to 99% chlorine, sediment above 5 microns\u003c\/li\u003e\n\u003cli\u003eFeatures: pressure gauge, flow limiter, automatic shut-off valve\u003c\/li\u003e\n\u003cli\u003eSuited to: small tents, propagators, balconies and containers\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e","brand":"GrowMax","offers":[{"title":"Default Title","offer_id":53798277153034,"sku":"NUT-GRO3-014-01","price":118.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/7127\/5786\/files\/growmax-minimax-75-gpd-reverse-osmosis-unit-1.jpg?v=1790163986","url":"https:\/\/hydrocropshop.co.uk\/products\/growmax-minimax-75-gpd-reverse-osmosis-unit","provider":"Hydro Crop Shop","version":"1.0","type":"link"}