Will this be able to be fitted with the EF2000+ external filter with supplementary 2.3 L canister? (in terms of tubing fitting?

I'm unsure regarding size fitting but what I can say is this is the best uv filter I have had, I would just get it and try it out. Very easy to assemble . Good luck

Will this qork on a fluval 307

Assuming Fluval 307 is your filter it should work if you you fit it in the pipe to the input side between the pump and the filter. Mine is fitted there feeding to a home built lave rock filter and it works really well. Pond is 4500litres if that helps.

Where can i get spare bulbs for CUV-211?

At most aquatic shops. standard type bulbs.

Hi, what size is the thread on the unit which the hose tail attaches to?

No idea of the thread size on the unit which holds the "tail", I don't need to know. The hose tail is cot to suit hose diameter, the hose is pushed on and held with a jubilee clip. ( Warm the hose end in hot water, to make it more pliable to push on. It will also shrink back slightly to grip the hose tail).

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allpondsolutions 11w UV Light Steriliser for Pond & Aquarium - CUV-211 Fish Tank Pond Clarifier - Helps Remove Algae and Greenwater

Product ID: 49066396

💡11W powerful UV sterilization

🔄Helix design for even water exposure

🔗Triple inlet/outlet for versatile flow

¥24520

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Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💧 Clear water, clear mind — elevate your pond game!

POND POWERHOUSE - Effective for ponds up to 7000L, keeping large ecosystems pristine
TRIPLE FLOW CONTROL - Three inlet/outlets let you customize water flow to multiple features
360 WATER TURBULENCE - Innovative helix design ensures maximum sterilization efficiency
FITS YOUR SETUP PERFECTLY - Comes with stepped hosetails for various hose sizes
CRYSTAL CLEAR WATER EVERY TIME - 11W UV light clumps algae for superior filtration

The allpondsolutions 11W UV Light Steriliser uses a helix design to evenly expose pond or aquarium water to UV light, effectively clumping algae and greenwater for easy filtration. Featuring three inlet/outlets and multiple hosetail sizes, it offers versatile installation options and is suitable for ponds up to 7000L, ensuring crystal-clear water and a healthier aquatic environment.

Specifications

ASIN	B002NLKA8G
Batteries Included	No
Batteries required	No
Colour	Orange, Black
Customer Reviews	4.4 4.4 out of 5 stars (787)
Date First Available	1 Sept. 2009
Item Form	Solid
Item Weight	1 kg
Item model number	CUV-211
Number of Items	1
Pet Type	Fish
Product Dimensions	32.2 x 14.5 x 7.7 cm; 1 kg
Quantity	1
Size	1 Count (Pack of 1)
Wattage	11 watts

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¥24520

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

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TrustScore 4.5 | 7,300+ reviews

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