Sentry Water Filters
Fish Aquarium 4-Stage Reverse Osmosis Water Filters + RO Membrane + RO DI Filter PRO-4-D
Fish Aquarium 4-Stage Reverse Osmosis Water Filters + RO Membrane + RO DI Filter PRO-4-D
Couldn't load pickup availability
FISH AQUARIUM 4-STAGE REVERSE OSMOSIS WATER FILTERS + RO MEMBRANE + RO DI FILTER PRO-4-D
Aquarium 4-Stage Aquarium Reverse Osmosis Water Filter Replacement Set
Select replacement filters from the drop-down menu
Standard volume pre-filters can used for up to +/- 5,000 litres of RO DI water produced and the high volume 5uM Matrikx CTO filter will be able to produce +/- 15,000 litres.
Membrane flow is rated in GPD [gallons per day] at 55psi so on average membranes produce at the flow rates that follow: 50GPD = 8 Litres Per Hour, 75GPD = 12LPH, 100GPD = 18LPH and 180GPD = 28LPH.
Our resin is the highest food grade mixed bed deionising resin and is supplied loose so you can refill your existing refillable in line filter or in a refillable in line filter.
All of the parts that come into contact with the water in our systems are manufactured from BPA free food grade plastics. All of the filters and parts that we source are of the highest quality and meet the required quality standards.
Actual measurements of spun sediment water filters are +/- [25cm] x [7cm]
Measurements of coconut carbon block water filters are +/- [25cm] x [7cm]
Filters meet WQA international quality standards
Could be supplied in various equivalent brands depending on current stock levels
If you are not entirely satisfied with your purchase please contact us so that we can try to resolve your concerns
Why Choose the Fish Aquarium 4-Stage Reverse Osmosis Water Filter Replacement Set?
This Aquarium 4-Stage Reverse Osmosis Water Filter Replacement Set is designed to provide high-quality, pure water for fish aquariums. The set offers a convenient way to maintain a reverse osmosis system by providing the necessary replacement filters and an optional RO membrane. This system is crucial for creating the ideal water conditions for your fish, as it effectively removes a wide range of impurities.
Compact Design and Powerful Performance
This replacement set is available in different configurations and includes a spun sediment filter, a coconut carbon block filter (with standard and high-volume options), a reverse osmosis membrane, and a mixed bed deionising resin filter. The filters are designed to fit standard 10"x2.5" systems. Depending on the filter type, the set can produce between 5,000 and 15,000 litres of RO DI water. The deionising resin is of the highest food-grade quality and can be used to refill an existing inline filter.
Seamless Integration and Easy Maintenance
The filters are designed for easy replacement, ensuring straightforward maintenance of your aquarium's RO system. All components are made from BPA-free food-grade plastics and meet WQA international quality standards. The product notes that the specific brand of filters may vary based on stock levels, but they will be of equivalent quality.
Share

The team were great with confirming the correct replacement filters and answering the million questions I kept throwing at them.
We bought our RODI system from them and will continue going back for filters and replacements.
Always get great service from sentry, prompt delivery and no question too hard to get a response to. Their product is first rate. I dont buy my filtration from anyone else.
We truly appreciate your continued support and for making us your go-to for filtration. It is wonderful to know that our service and products have consistently met your expectations.
Great product will be buying again
The team were great with confirming the correct replacement filters and answering the million questions I kept throwing at them.
We bought our RODI system from them and will continue going back for filters and replacements.
Always get great service from sentry, prompt delivery and no question too hard to get a response to. Their product is first rate. I dont buy my filtration from anyone else.
We truly appreciate your continued support and for making us your go-to for filtration. It is wonderful to know that our service and products have consistently met your expectations.
Great product will be buying again
The team were great with confirming the correct replacement filters and answering the million questions I kept throwing at them.
We bought our RODI system from them and will continue going back for filters and replacements.
Always get great service from sentry, prompt delivery and no question too hard to get a response to. Their product is first rate. I dont buy my filtration from anyone else.
We truly appreciate your continued support and for making us your go-to for filtration. It is wonderful to know that our service and products have consistently met your expectations.
Great product will be buying again