This powerful double ended pond uvc bulb zaps away single cell green algae and is suitable for use with the lotus 100w uvc.

This bulb is specific to laguna and is particularly unique as it is both single ended and single tubed, with all 4 pins on one end. It is used in the laguna pressure flo 3000 and laguna pressure flo 6000 filters.

This single ended uv bulb fits many popular filters such as the following br br all in ones br oase filtral 9000 br pondxpert tripleaction 4500 evolve br pondxpert tripleaction 6000 evolve br br filters br hozelock bioforce 8000 br oase filtoclear 6000...

This 13w bulb has a unique 'double fin' appearance at the base of the bulb. It is suitable for the fish mate 15000 powerclenz filter.

This popular single ended uvc bulb fits the following filtration systems br br all in ones br fish mate 5000 bio filter pondxpert tripleaction 3000 5m cable br hozelock easyclear 9000 br pondxpert tripleaction 3000 classic 5m cable br pondxpert tripleaction...

This quality double ended uvc light bulb that fits the following systems br br filters br fish mate gravity 15 30 br br uvcs br evolution aqua evo 15w br lotus 15w br tmc 15

This 16w bulb fits the following filtration systems br br filters br hozelock ecopower 10000 br hozelock ecopower 10000 br oasis lotus green2clean 12000