Complete Foam Replacement for the Filtral 700 The Oase Filtral 700 filter foam set provides fresh multi-density foam media that handles both mechanical particle removal and biological nitrification inside your all-in-one filter. Compressed or disintegrating foam can no longer trap fine particles or support healthy bacteria populations — replacing the set restores both functions. Annual Replacement Recommended Even with regular rinsing, foam degrades after a full season of continuous use. The pore structure collapses, reducing both flow rate and biological surface area. A new set each spring gives your filter its best chance at maintaining clear, healthy water throughout the Canadian pond season. Specification Details Compatible Model Filtral 700 Contents Multi-density foam set Replacement Interval Annually Installation Lift the Filtral from the pond, open the housing, and remove the old foam. Insert the new pads in the correct density order — coarse facing the inlet. Reassemble and submerge. Allow several weeks for beneficial bacteria to fully colonise the new media. Ideal for Filtral 700 owners performing spring maintenance to prepare the filter for the active season.
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