8w Bulb - fits Ecopower 4500/5000 and Ecomax 4500. 16w Bulb - fits Ecopower 9000/10000 and Ecomax 9000. 6w Bulb - fits Ecopower 2200/2500. GENUINE HOZELOCK UV BULBS. LAGUNA UVC BULB LAMP TUBE PRESSURE FLO 4 PIN UV FISH POND O-RINGS SEALS GENUINE.
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