A4000 Filter Kit suit 4 Stage Reverse Osmosis No Membrane

The HydROtwist Premuim Replacement Filter Cartridge Kit for the A4000 Aquarium 4 Stage Reverse Osmosis System

Comes complete with:

1 x PP10255 - Polyspun 5 Micron Sediment Filter (10" x 2.5")
1 x CB10251 - Premium 1 Micron Carbon Block Filter (10" x 2.5")
1 x HT1020-DI - Premium Inline Mixed Bed Ion Exchange Resin Filter (10" x 2")

Purchase all filters in a pack and save!

Please note this kit does not come with a replacement membrane please see our other filter packs.

In Aquarium applications the membrane usually needs to be replaced every 1 - 2 years depending on usage and water quality so if you have had your system for more than this time then its most likely you will need a new membrane.

We provide technical support if you have problems changing your filters.