Danner/Pondmaster Pond-Mag Pump X-Large Square Sponge Prefilter works with the Pondmaster Mag-Drive Pumps. A prefilter prevents algae and debris from entering the pump and potentially damaging the impellor and other internal parts.
For Pond-Mag Models: 250 GPH, 350 GPH, 500 GPH, 700 GPH, Hydro-Air 1200, Cover-Care 350 GPH and Cover-Care 500 GPH
Note: Pond-Mag pumps were previously called Mag-Drive.
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