When the water under the irradiation of wavelength in 253.7 nm ultraviolet radiation in a short period, the germ and pathogen in the water will be killed then. CUP - 139 UV Fountain Pump. They can not used in the swimming pool.
eBay
JJC Camera Lens Filter Wrench Kit for CPL UV ND Ultra-thin Filter Double-sided Removal Wrench Tool Fit 37 49 52 58 67 72 82 95mm
Aliexpress UK
These bulbs are available with PLS fittings (2 pins at one end), PLL fitting (4 pins at one end), or Linear type (2 pins at both ends). Detailed sizes and specifications are available below for each bulb.
eBay
3 Pockets Camera Lens Camera UV CPL Filter Bag Case Protective Storage Case Filter Bag For Cokin P Series Full ND Gradient Color
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
K&F Concept Sports Camera Filters for DJI Osmo Pocket 3 UV CPL ND/PL Black Diffusion 1/2 1/8 Adjustable 2 in 1 Optional Filters
Aliexpress UK
Ensure clear, healthy water in your pond with the Blagdon Pro Mod UVC Filters, available from Aquacadabra. Blagdon UVC 4500L 5W. Blagdon UVC 16200L 18W. Blagdon UVC 21600L 24W. Blagdon UVC 32400L 36W.
eBay
BRDRC Lens Filters for DJI Mini 4 Pro UV CPL ND8/ND16/ND32 ND64 Neutral Density/ND PL Filter Set Drone Photography Accessory
Aliexpress UK
High Quality Materials - Each clear glass UV bulb is made of tough materials to ensure they stand up to the job. These bulbs work to clear your pond or aquarium water by removing unsightly green algae.
eBay
DJI Mavic Air 2 Drone Camera Lens Filters Set UV CPL ND4/8/16/32 NDPL for MAVIC air 2 Lens Filter Accessories MCUV CPL
Aliexpress UK
Standardised bulb fittings to fit the majority of other major manufacturers (such as Hozelock, Oase, Fishmate etc). These bulbs are genuine Jebao made from quality quartz glass to help give the best possible ultra violet light emission and results.
eBay
UV CPL ND8 ND16 ND32 Filter for GoPro Hero 13 12 11 10 9 Black Red Color Filters Kit Go Pro Polarized Camera Lens Accessories
Aliexpress UK
UVC: 8 watt. Poor water quality is invariably the main cause of fish falling sick, hence the importance of suitable pond water filter to keep it at the necessary standard in order to maintain healthy fish.
eBay
K&F Concept Sport Effect Filter for DJI Osmo Pocket 3 UV CPL ND ND/PL Black Mist 1/2 1/4 1/8 LPR Star 1.2X Wide-Angle Filter Set
Aliexpress UK
The range of Hozelock EasyClear filter are the perfect all in one fish pond filter system, combining pump, UVC and filter into one compact and effective filter unit. The EasyClear is supplied with fountain heads for the outlet which is adjustable.
eBay
aMagisn CPL UV ND Filter Set for Insta360 Ace Pro 2 ND8 ND16 ND32 ND64 Waterproof Lens Filters for Insta 360 AcePro2 Accessories
Aliexpress UK