Kockney Koi K-Koi 18000V GRP Filter – Pump Fed with Media, No Lid

Kockney Koi K-Koi 18000V GRP Filter – Pump Fed with Media, No Lid

The Kockney Koi K-Koi 18,000V is a free-standing GRP multi-bay pond filter in pump fed configuration. Its separate chambers slow the water and give mechanical and biological media distinct jobs, making the system easy to understand, inspect and adapt over a long service life.

This V-series version includes an integral vortex section ahead of the filter bays, helping heavier solids settle before the water reaches the finer media. The SKS package includes filter media but no lid, exactly as stated in the product title.

Why choose a traditional multi-bay filter

• Durable fibreglass construction
• Separate bays make the filtration stages visible and serviceable
• Supplied with the stated filter-media package
• Drain points allow settled waste to be purged instead of stirred through every chamber
• Correctly configured for pump fed installation
• No lid is supplied with this SKS product

Verified product information

Pump-fed and gravity-fed systems are not interchangeable

This is the pump fed version. In a pump-fed layout the pump sends dirty pond water to a filter above pond level and the clean water returns by gravity. In a gravity-fed layout the filter waterline matches the pond, usually with large-bore bottom-drain or skimmer feeds and a pump after the filter. The inlet, outlet and operating level therefore need to be planned around the exact version on this page.

Do not size a koi filter from the model number alone. Fish load, feeding rate, pond exposure and flow through the bays matter more than a simple headline volume. Allow enough turnover to carry waste to the filter without pushing water so quickly that settlement and mechanical capture are compromised.

Our practical view: These filters reward a well-planned equipment bay. Leave room to lift every media cartridge, open every drain and reach the pipework. A beautiful filter house that prevents the owner from cleaning the first bay will soon create poor water quality.

Frequently asked questions

Is a lid included?

No. The SKS listing specifically states that this filter is supplied without a lid.

Does it include media?

Yes, where the title states ‘with media’. Check the supplied media on delivery before adding alternative stages.

Can I convert pump fed to gravity fed?

Do not assume a simple conversion. The inlet, outlets and working water level differ; choose the correct factory configuration.

How often should the bays be cleaned?

Purge settled waste before it breaks down, then clean mechanical stages as flow begins to fall. Preserve biological media by rinsing gently in pond water when necessary.

What pump should I use?

Choose from the required delivered flow after head loss and the safe flow through the filter, not the pump’s zero-head label.

Supplier availability: SKS currently lists this model as out of stock. We have kept the page live because the specification, compatibility and replacement information remain useful; checkout stays disabled until stock returns.

Complete or compare the system

These are the closest products or service items to compare:

• Kockney Koi K-Koi 4000 Four-Bay GRP Pond Filter – Pump Fed, No Lid
• Kockney Koi K-Koi 18000V GRP Filter – Gravity Fed with Media, No Lid
• Kockney Koi K-Koi 10000V GRP Filter – Gravity Fed with Media, No Lid
• Kockney Koi K-Koi 10000V GRP Filter – Pump Fed with Media, No Lid

Useful sections: Kockney Koi multi-bay filters · pond filter pumps · pond pipework and fittings.

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