COARSE FILTER FOAM BLOCKS 6", 8", 10", 12" SIZES.Drilled 30mm hole. Pond Media

COARSE FILTER FOAM BLOCKS. Sits on plastic inserts for many popular pond filters. 6" - 4"x4"x6" tall, 30mm hole drilled 5" deep. 8" - 4"x4"x8" tall, 30mm hole drilled 7" deep. 10" - 4"x4"x10" tall, 30mm hole drilled 9" deep.

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