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Cascade Bio Rings Refills For 500 & 700 Filters

$7.49 $6.74
(You save $0.75)
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Product Description

These Cascade Bio-Rings Filt-A-Pack is a convenient ready-to-use nylon mesh filter bag filled with Ceramic Rings. Surface area and pores sized to accommodate bacteria necessary for biological balance and to remove toxic Ammonia and Nitrite. Produces crystal-clear water. Works with the cascade 500 & 700 Canister Filters. Product Dimensions: 10 x 4 x 7 inches