The AllPondSolutions UV Light Steriliser range have a unique design which feeds the water through a special helix. This helix spins the water while subjecting it to UV sterilisation, allowing for optimum exposure.
eBay
The steriliser's are also supplied with a separate glass viewport which can be used to replace one of the hosetails for use as a one-in / one-out unit. Suitable for Pond up to 12000 Litres. Suitable for Aquarium Sizes up to 340 Litres.
eBay
Jebao PU Range UV Clarifier - 7w/9w/11w/18w/36w/55w. Jebao Pond UV Steriliser Unit. The water must be pumped through the unit and not gravity fed. The algae, causing green water, are made to clump together (flocculate) by the UV (ultra violet) light so that they can be sieved out of the water by a filter to give clear water.
eBay
These powerful yet economical units have been designed to ensure effective flow rates and optimum performance, compatible with various filtration systems. Installation is hassle-free, whether using flexible hoses or hard pipes, facilitating integration within existing pipework runs.
eBay
The current equivalent model is around £125.
eBay
Suitable for Pond Filters and UV Units. 9 Watt PLS. 9 Watt, 165mm . Ultra-Violet Lamp. Pisces Black Corrugated Hose. Key Features. Should be replaced every 12 months. Length: 165mm.
eBay
Jebao PU - 9 Natural Water UV Clarifier - 9 Watts. The water must be pumped through the unit and not gravity fed. The algae, causing green water, are made to clump together (flocculate) by the UV (ultra violet) light so that they can be sieved out of the water by a filter to give clear water.
eBay
Yamitsu Algae Master 55 Watt UV. The algae master UV clarifiers have been in production since the 1990's and are a quality unit at an affordable price. The units are manufactured using UV stabilised plastics and have built in 'turbulators' which help 'turn' the water around the UV light.
eBay