The AllPondSolutions CUV-118 18w UV Light Steriliser. The sterilizer is 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.
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SUNSUN aquarium filter ultra-quiet external aquarium filter bucket 220V/HW-702A-HW704B uv sterilizer aquarium uv lamp aquarium
Aliexpress UK
Model: EasyClear 3-in-1 3000. Hozelock EasyClear. Hozelock Easy Clear 3000 All-In-One Pump/Filter/UVC Unit. A 5w UVC to eliminate green water. Healthy water - The filter sieves out solids that make the water cloudy and ensures the water is healthy for fish and plants.
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Aquarium UV Sterilizing Filters Fish Tank 5-In-1 UV Filter Silent Water Pump for Fish Tanks Oxygen Pumps Aquariums Accessories
Aliexpress UK
This Jebao all in one pond filter and uv-c is the combined system for smaller goldfish ponds. A side exit on the extension tube also allows the system to run a small water feature of stream. 220-240v 10m electric cable - no plug fitted.
eBay
SUNSUN aquarium filter ultra-quiet external aquarium filter bucket 220V HW-502-HW-508 uv sterilizer aquarium uv lamp aquarium
Aliexpress UK
Blagdon MiniPond Water Garden Filtration System. Filter Model : MPF6000/12000 - for ponds up to 12000 ltr (Capacity with Fish = 6000 ltr) - (1320 gal) -High power output : 9w UVC -Max flow rate : 3000 ltr (660 gal).
eBay
JEBO 5W-36W UV Light Replacement for Aquarium Pond UV Sterilizer Lamp Water Cleaner AC220-240V
Aliexpress UK
If you’ve been sitting on the garden fence about installing a pond and have finally decided that it’s actually a great idea to bring your outdoor space to life, a 2500 GUV Gravity Pond Filter is a must!
eBay
SUNSUN Fish Tank Fish Pond Germicidal Lamp Accessories UV UV Tube For CPA CPF CUV Series 18W 24W 36W 55W
Aliexpress UK
PondXpert spinclean 6000 Easy Clean UV Pond Filter.
eBay
SUNSUN CFP pond water pump fish pond filter pool high power submersible circulation pump aquarium circulating pump
Aliexpress UK
Hozelock Ecopower 6000 Pond Filter. Water enters the Hozelock Ecopower filter through a stepped hose tail (20 / 25 / 32 / 40mm), and from there it passes into the UV chamber. The UV chamber features an integrated "turbulator" to ensure that the water is exposed correctly to the UV light produced by the bulb.
eBay
ALTHY UV Ultraviolet Water Sterilizer Purifier System Disinfection Filter Lamp + Flow Switch Control Stainless Steel 1GPM
Aliexpress UK
Superfish Combi Clear 4000 All In 1 Pond Filter An All in 1 Filter, Pump, UV and Fountain for Ponds upto 4000 litres. Everything for the Aquarist, Pond Keeper & Pet Loverview all products. Max Pond Size: 4,000 litre.
eBay
SUNSUN HW 404B 505B 507B 702A 702B 704B Aquarium External Filter Fish Tank Canister Optional 9w UV Steriliser
Aliexpress UK