These Fish Mate UV + Bio Bond feature filter material that consists of brush, filter brushes and SUPRA BIO MEDIA, a Porous inert filter media possessing over 100 times the biological surface of plastic media. Combined UV and filter Mechanical filtration - Biological purification Includes SUPRA BIO MEDIA. Availability: Compact (8W UV for ponds up to 1,000 gallons, 300 gph pump) Compact (16W UV for ponds up to 2,000 gallons, 600 gph pump) Medium (25W UV for ponds up to 4,000 gallons, 1600 gph pump) Large (25W UV for ponds up to 5,000 gallons, 2,000 gph pump) Large (30W UV for ponds up to 6,000 gallons, 2,400 gph pump)
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