The Kockney filter foam set 4 fits the Mega Max filter and the mega Max filter with the 30 watt UVC.

They are pre cut so all you need to do is open the pack and slide the foam in to place.

• Foam filter set pre cut to fit the Kockney Koi Yamitsu mega Max filter
• Pack contains 1 x coarse foam, 1 x medium foam, 1 x fine foam, 1 x extra fine & 1 x poly fleece polishing foam
• Produced from an aquatic grade filter foam

Foam sheet size - approximately 21" x 34"

Old filter sponge sets shrink and distort over time so replacing them once a year is a good idea to keep you filter running at it's best.