GrowMax Water Super Grow water filter 800 L/h

The GrowMax Water Super Grow is a particularly powerful 2-stage water filter designed for use in large gardens, greenhouses, and professional indoor systems . With an impressive capacity of up to 800 liters per hour, it reliably delivers chlorine-free, low-pollutant water —ideal for sensitive crops, organic fertilization, and automated irrigation systems.

High performance without power consumption

Like all GrowMax filters, the Super Grow operates without electricity , relying solely on the pressure of your water line. This makes it extremely reliable and easy to use – even in mobile setups or remote locations. The 3/4" coupling allows the system to be integrated into any irrigation system in just a few minutes.

Effective protection for soil life and plants

Chlorine, sediment, pesticides, and organic residues in tap water can harm soil microorganisms and inhibit plant growth . The Super Grow reliably filters these out, creating optimal conditions for compost tea, BioTabs, worm castings, and living substrates .

Filter technology & replacement intervals

The system combines:

1. 5 micron sediment filter – for removing suspended solids, rust and deposits
2. GAC activated carbon filters – for removing chlorine, chloramines, pesticides, herbicides, VOCs, solvents and more

The filters should be replaced every 4–6 months or after approximately 28,000 liters of water use, depending on the quality of your tap water. Replacement cartridges are available separately and are easy to replace thanks to the quick-change thread.

Technical data

• Flow rate: up to 800 L/h
• Filter stages: sediment filter (5 µm) + GAC carbon filter
• Connections: 3/4" garden hose (inlet & outlet)
• No electricity required – only water pressure
• Filter capacity: approx. 28,000 liters (depending on water quality)
• Recommended filter change: every 4–6 months

The GrowMax Super Grow is the optimal solution for large grows and greenhouses where high volume, consistently high water quality and reliable, low-maintenance operation are important.

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.