8W watt UV G8-T5 Bulb for. Fish Mate 500 Gravity UV+Bio Pond Filter - 8 Watt - Bulb #329. Fish Mate 2000 Gravity UV+ Bio Pond Filter - AN314 - 8 Watt - Bulb #329. Fish Mate 800 Gravity UV+ Bio Pond Filter - AN336 - 8 Watt - Bulb #329.
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