Sponge Filter, Extra Large Huge Sponge Filter

This extra large sponge filter works as a biological filter and clarifies water through solids capture. A nice filter for small ponds, water gardens and fish holding tanks.
<p>This extra large sponge filter works as a biological filter and clarifies water through solids capture. A nice filter for small ponds, water gardens and fish holding tanks. The reticulated sponge is 9&quot; x 9&quot; x 9&quot; and is easily cleaned or replaced without tools. The 20&quot; tall PVC chimney is sealed at the bottom and can be shortened if needed. </p><p>Requires .25 cfm of air to operate and 1 lb of weight to submerge it (pour a cup of sand or gravel down the chimney). Includes 20' of 1/4&quot; I.D. tubing and an <strong>ALS3</strong> diffuser. Made in USA.</p> <p>Note: the current fish-safe sponge filter is black in color.</p>

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