GrowMax Minimax 75 GPD Reverse Osmosis Unit
GrowMax Minimax 75 GPD Reverse Osmosis Unit

Description

The GrowMax Minimax 75 GPD Reverse Osmosis Unit is a compact GrowMax reverse osmosis unit rated at 75 gallons per day, for smaller grows that want clean, low ppm water for mixing feeds.

Why growers use it

  • Reverse osmosis water for complete control of your feed
  • Rated at 75 gallons per day
  • Ask us for the matching GrowMax replacement filters and membranes

Getting started

Connect to your mains cold water, run the first tank to waste, then collect RO water for mixing feeds. RO water has almost no calcium or magnesium, so add a cal mag supplement or use a soft water nutrient.

Free UK delivery on orders over £94.99, or free Click & Collect from our West Bromwich shop. Not sure what you need? Call 0121 553 7872 or WhatsApp our team for honest advice.

Explore the range

See all Irrigation (19)

Not sure which one is right for your setup? Message us on WhatsApp or call 0121 553 7872.

Delivery, returns and FAQs

Will my order arrive in plain packaging?

Yes. Every order is sent in plain, unbranded packaging as standard.

How quickly will my order arrive?

Order standard size items by 12pm on a working day and choose Next working day at checkout, and your order will be with you the next working day. Standard delivery takes 2 to 3 working days.

Bulky items such as grow tents, large fans and 50L bags of soil go by courier in 2 to 3 working days, or on a pallet for very heavy orders. Next day is not available for these, and if your basket includes a bulky item the whole order travels with it.

UK delivery is free on orders of £94.99 or more, except for bulky items. See our delivery page for full prices.

Can I collect from the shop?

Yes. Choose Click & Collect at checkout and pick up for free from our shop at Unit 2 Black Lake, West Bromwich, B70 0PJ. Orders are ready within 1 hour.

Can I return an item?

You have 14 days from receiving your order to tell us you want to cancel, then a further 14 days to send it back. Items need to be unopened and in a resaleable condition.

If you change your mind, the return postage is paid by you. If something arrives faulty or damaged, send us photos within 48 hours and we will cover the cost of putting it right. Full details are in our refund policy.

Do you price match?

Yes. If you find the GrowMax Minimax 75 GPD Reverse Osmosis Unit cheaper at another UK retailer, use the Price Match button on this page. We usually reply within one business day.

Need help choosing?

Speak to our team. Call us on 0121 553 7872, message us on WhatsApp, or visit the shop in West Bromwich.

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