At Cotswold Koi we have a wide range of Yamitsu Spares. Yamitsu or Kockney Koi have a wide range of products from filters to uvs.

Japanese Matting Sets
Japanese Matting Sets
The Japanese Matting Sets are designed specifically as a replacement part for the filtration units in our product range, making maintenance of your koi pond filtration system easier than ever. This high-performance matting offers exceptional mechanical filtration, ensuring that your koi pond remains clean, clear, and healthy. Perfectly sized and ready to use, it eliminates the need for custom cutting, providing a hassle-free solution for regular maintenance. Read more
Available in 5 sizes:
- 4000/5000v
- 8000/12000v
- 9000/10000v
- 15000/18000v
- 20000

Kockney Koi Platinum Filter Replacement Foam Sets
Kockney Koi Platinum Filter Replacement Foam Sets
The Kockney Koi Platinum Filter Replacement Foam Sets are available for the whole range of filters. Ensure your Kockney Koi Platinum Filter continues to operate at peak efficiency with this high-quality replacement foam set. Designed specifically for the Kockney Koi Platinum filters, these foams provide excellent biological and mechanical filtration, keeping your pond water crystal clear and healthy for fish and aquatic life. Read more
Features:
- Perfect Fit: Custom-designed to fit the Kockney Koi Platinum Filters, ensuring seamless installation and optimal performance.
- High-Quality Foam: Made from durable, high-density material that is both long-lasting and effective at trapping debris and providing surface area for beneficial bacteria.
- Efficient Filtration: The foam set enhances the mechanical filtration process by removing fine particles, while supporting biological filtration to maintain a balanced and clean pond environment.
- Easy to Replace: Simple to install and replace, making maintenance a breeze and ensuring your filter is always performing at its best.
- Maintains Water Quality: Helps to prevent water pollution, keeping the pond water clear, oxygen-rich, and healthy for your fish.
Available in 4 different sets 8,000, 14000, 20000 and the 26000/30000.

Kockney Koi Replacement Fuse Pack
Kockney Koi Replacement Fuse Pack
The Kockney Koi Replacement Fuse Pack contains 10 spare fuses for the Yamitsu 3 way and 4 way swicth boxes or other suitable makes and models of outdoor switch box. Read more
The pack includes 3 x 8 Amp and 7 x 2.5 Amp Glass Fuses and are colour coded for easy identification.

Yamitsu Algae Master Pond UV Clarifier Replacement Electrics
Yamitsu Algae Master Pond UV Clarifier Replacement Electrics
The Yamitsu Algae Master Pond UV Clarifier Replacement Electrics ensures your Yamitsu Algae Master UV filter operates at peak performance with the Replacement Electric Pack. Designed specifically for the Yamitsu Algae Master range, this high-quality electrical pack is an essential component to maintain the efficiency and reliability of your algae control system. Read more
Features:
- Direct Replacement: Compatible with all Yamitsu Algae Master models, making it easy to swap out the old unit and restore full functionality.
- Enhanced Durability: Built to last, providing consistent power to your UV filter for optimal algae removal.
- Easy Installation: Simple, user-friendly design for quick and hassle-free replacement.
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Reliable Performance: Helps ensure your system runs smoothly, improving water clarity and preventing algae build-up.
Keep your filtration system working like new by replacing your electric pack when needed. Perfect for both routine maintenance and repairs, this replacement electric pack is an essential part of your aquarium or pond care kit.

Yamitsu Algae Master Pond UV Replacement Bodys
Yamitsu Algae Master Pond UV Replacement Bodys
The Yamitsu Algae Master Pond UV Replacement Bodys are genuine replacements. These are available in four different sizes for the whole range. Read more
Please Note these are for the standard Yamitsu Algae Master Pond UV Clarifier and not for the uvs on platinum and mega filters

Yamitsu Algae Master UV Replacement Bulbs
Yamitsu Algae Master UV Replacement Bulbs
The Yamitsu Algae Master UV Replacement Bulbs are available for the whole range of the Yamitsu Algae Master Pond UV clarifiers. The T8 Bulbs are available in 5 different wattages with the 110w model requiring 2x 55w Bulbs. Since the UVC clarifier is mostly in constant use, the effect can wear off it is therefore recommended that the lamps be replaced at regular intervals. It is best to think about this in spring so that your clarifier is ready for the whole pond season. Read more
Sizes Available:
- 11w Bulb Length 210mm
- 15w Bulb Length 435mm
- 25w Bulb Length 435mm
- 30w Bulb Length 892mm
- 55w Bulb Length 892mm
- 110w Bulb Length 2x 892mm

Yamitsu Quartz Sleeves
Yamitsu Quartz Sleeves
The Yamitsu Quartz Sleeve insulates the lamp from the water, allowing the lamp to operate at the optimum performance. The ultraviolet lamp will remain independent of the flow of water. Yamitsu Quartz Sleeves are of open-ended construction and are made from pure fused quartz. Quartz is extremely transparent over a wide spectral range, with a low coefficient of thermal expansion and quartz is resistant to scratching and thermal shock. Fused quartz is made from crushing and melting natural materials. The purity of quartz is paramount to the efficiency of the lamp and sleeve. For those Koi and pond enthusiasts who are not as careful at they might be, we do also sell the spare Yamitsu Quartz Sleeves in the most standard sizes. Read more
Yamitsu Quartz Sleeve Dimensions:
15w/25w
- Overall length 430mm
- External diameter 30mm
- Internal diameter 27mm
30w/55w
- Overall length 890mm
- External diameter 30mm
- Internal diameter 27mm

Yamitsu UV End Caps
Yamitsu UV End Caps
The Yamitsu UV End Caps are a genuine replacement bulb holder for T8 bulbs and these are available in two different types the round ones are for the 15,25,30,55 and 110w UV’s and the smaller one is available for the 6,8 and 11w UV’s. Read more
These are sold individually

Yamitsu UV Locking Nut
Yamitsu UV Locking Nut
This is a genuine Yamitsu UV Locking Nut that screws over the quartz sleeve onto UV unit. We have a wide range of Yamitsu spares available. Read more
These are sold individually

Yamitsu UV Replacement Black Retaining Clips
Yamitsu UV Replacement Black Retaining Clips
The Yamitsu UV Replacement Black Retaining Clip are genuine Yamitsu spares and fit the whole range of Yamitsu Clarifiers. The Retaining Clips tighten around the rubber end caps to help prevent water getting inside the end caps. Read more
These are sold individually

Yamitsu UV Replacement Quartz Sleeve O Rings
Yamitsu UV Replacement Quartz Sleeve O Rings
Genuine replacement O ring for quartz sleeves that fit all Yamitsu algae master UV units. These are sold as a pair of O Rings. You would need 1 pair of O rings for the 11, 15, 25, 30, 55, and would need 2 for the 110w. Read more

Yamitsu UV Rubber End Caps
Yamitsu UV Rubber End Caps
The Yamitsu UV Rubber End Caps are genuine Yamitsu spares and fit the whole range of Yamitsu Clarifiers. The Yamitsu UV Rubber End Caps fit underneath the retaining clips. Read more
Sold individually

Yamitsu UV Wall Brackets
Yamitsu UV Wall Brackets
Yamitsu UV Wall Brackets are made for holding Yamitsu Uv’s, with easy access to remove for maintenance. Can also be used for holding other pipework. Clip ID 95.5mm. Read more
Sold individually
