Replacement filter mats for concave filters

The special filter mat for concave filters

As a rule, the filter mat in an HMF filter remains in use for a very long time, sometimes for several years.

Nevertheless, there are good reasons to have a replacement on hand.
-You want to completely rebuild the pool
-You want to operate the filter in another tank and want to rule out the risk of bacterial intolerance (BU).
or or or...

The replacement filter mat set consists of three parts.
1x main filter mat in selected height and leg length
2x corner filter sponge