GrowMax Water Minimax 75 - Reverse Osmosis System

The GrowMax Water MiniMax 75 reverse osmosis system is the perfect choice for small and medium-sized grow projects. With a production capacity of up to 10 liters of reverse osmosis water per hour, this system ensures a reliable supply of pure water – optimal for the healthy development of your plants.

Compact and versatile – ideal for small growing areas

Thanks to its compact design, the MiniMax 75 is perfect for both indoor and outdoor applications . It fits easily into small grow tents (80x80 cm, 90x60 cm, 100x100 cm) or on balconies and terraces. It also works perfectly in home hydroponic systems .

Effective filtration for pure water

The reverse osmosis system reliably filters impurities from the water, providing optimal water quality for plant irrigation. The integrated granular activated carbon (GAC) filter and the high-quality 75 GPD RO membrane ensure thorough and safe purification of tap water. This keeps salts, heavy metals, and other contaminants out – the perfect foundation for healthy plants.

Easy installation and maintenance

Installing the MiniMax 75 is incredibly easy: The system comes with an internal diverter valve and an adapter for connecting to kitchen or bathroom fixtures. The kit also includes a shut-off ball valve with quick-connect connector , a garden hose connector, and a set of supply, drain, and clean water pipes.

Maintenance is equally straightforward: The RO membrane (75 GPD) should be replaced approximately annually, while the GAC pre-filter should be replaced every 3 to 6 months, depending on water quality and usage. This ensures consistently high filtration performance and a long service life of the system.

Technical data

• Performance: Up to 10 liters of osmosis water per hour
• Filtration: Granular activated carbon (GAC) filter and 75 GPD RO membrane
• Installation: Adapter for kitchen and bathroom faucets and garden hose connection
• Dimensions: Compact design for small growing areas
• Maintenance: GAC pre-filter every 3-6 months, RO membrane annually

Shipping costs
For shipping within Germany, we charge a flat rate of €6.90 , and for seed orders, it's just €3.90 . We want to offer you a special shopping experience – for orders over €150, we cover the shipping costs for you, so your order will be delivered to your home free of charge.

Shipping time
We know how important fast and secure deliveries are. That's why your order will be carefully packaged and insured within Germany to ensure it arrives safely. Delivery time is typically 1-4 business days , so you can have your desired products in your hands soon.

You can return your order to us within 14 days.