About the 24w Single-Ended UVC Bulb - BOGOF Manufacturer: UVC Bulbs ADD ONE 24W BULB TO YOUR BASKET AND RECEIVE TWO!!! MORE EFFICIENT, BETTER FLOW BETWEEN TUBES This is a popular replacement single-ended UV bulb that fits many pond filters and UV units including the following: FiltersBlagdon Midipond 14000Blagdon Midipond 28000Fish Mate 30000Hozelock Bioforce Revolution 9000Laguna Pressure Flo 14000*Laguna Pressure Flo 28000*Oase Filtoclear 16000PondXpert EasyFilter 30000PondXpert SpinClean 20000PondXpert SpinClean Auto 20000 UVCsBlagdon Pro