RSK 75 GPD Reverse Osmosis Unit - 3 Stage Water Filtration

RSK 75 GPD Reverse Osmosis Unit - 3 Stage Water Filtration

The RSK 75 GPD Reverse Osmosis Unit is a 3 stage reverse osmosis unit that supplies clean, purified water for your aquarium. It produces up to 75 gallons per day (300 litres per day) and comes with fittings, so it suits hobbyists who want a dependable supply of RO water for topping up, water changes or mixing.

Key Benefits

• 3 stage filtration system designed to remove impurities, contaminants and dissolved solids from your water
• Capacity of 75 GPD (300 litres per day), enough for a consistent supply of purified water
• Works for both small and large aquarium setups
• Comes with the fittings needed for installation, which keeps setup simple
• Gives your fish and other aquatic inhabitants cleaner, fresher water to live in

Purified Water for Your Aquarium

Water quality is the foundation of a healthy tank. Tap water can carry dissolved solids and other impurities, and a reverse osmosis unit reduces them before the water reaches your aquarium. This unit's 3 stage system filters and purifies the water, giving you a clean starting point for water changes and top-ups.

Suitable For

• Freshwater and saltwater aquarium keepers who want a home supply of purified water
• Small aquariums and large setups alike, thanks to the 300 litres per day capacity
• Hobbyists who want to produce their own RO water instead of relying on tap water

Specifications

• Filtration stages: 3
• Production capacity: 75 gallons per day (GPD), equal to 300 litres per day
• Installation fittings: included

What's Included

• 1 x 3 stage 75 GPD reverse osmosis unit
• Fittings for installation

Frequently Asked Questions

How much purified water can this unit produce?
It is rated at 75 gallons per day, which is 300 litres per day.

How many filtration stages does it have?
It is a 3 stage reverse osmosis system, designed to remove impurities, contaminants and dissolved solids.

Does it come with fittings?
Yes. The unit comes with the fittings needed for installation.

Is it big enough for a large aquarium?
At 300 litres per day, it can supply purified water for small tanks and larger setups. How long it takes to fill a very large system depends on your daily water needs.

Why use RO water in an aquarium in South Africa?
Tap water quality varies between areas and municipalities. A reverse osmosis unit lets you start from purified water that you control, rather than whatever comes out of the tap.

Can I use it for both freshwater and saltwater tanks?
Yes. It is designed to supply purified water for aquariums in general, so you can use it for the top-ups and water changes of either type of setup.

When can I expect delivery?

• Gauteng (Jhb/Pta) - 1-3 working days
• Nationwide (Cpt/Dbn+) - 2-5 working days
• Outlying Areas - 3-7 working days

All orders are sent via Economy Road, typically through Fastway or Internet Express Couriers*. Estimated timeframes are not guaranteed. Once the order is collected by the courier, we have no control over third-party logistics and cannot make any time promises.

If you prefer a faster 🚀 shipping option, we also offer The Courier Guy during checkout in the dropdown selection. Please note that this option is not free, and you must choose it to use it. Please pay careful attention to the cutoff times and delivery timeframe for these options during checkout.

Enjoy the convenience of collection points and lockers! 📦

No more waiting at home or at work for your delivery. Simply choose a collection locker or pickup point and collect your order when it suits you.

Delivery times to lockers and pickup locations typically range from 2–7 working days, depending on your location.*

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Collection timeframes:

• Bob Box: Collect within 2 days of receiving your collection notification.
• PUDO Lockers: Collect within 36 hours of receiving your collection PIN or SMS notification.

If a PUDO parcel is not collected within 36 hours, it will automatically be transferred to the nearest PUDO Kiosk or Depot at no additional cost. The parcel will then be held there for approximately 2 days before being returned.

Please ensure you collect your parcel within the applicable collection period. Uncollected parcels will be returned to the sender, and additional shipping charges may apply should the order need to be resent.