BIOFORCE UV BULB 5W 9W 11W 13W UVC FOR HOZELOCK SPARE LAMP TUBE FILTER POND FISH

11w - fits Bioforce 8000, 9000. 2 x 11w bulbs - fits Bioforce 18000. 13w (single lug) - fits Bioforce 12000 (must check what you have). 13w (twin lug) - fits Bioforce 12000 (must check what you have).

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