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Kockney Koi 4000 Box Filter Pump Fed

Original price £349.99 - Original price £349.99
Original price
£349.99 - £349.99
Current price £349.99
The 4000FG is a pump-fed, premium, free-standing, fibreglass, four-bay filter created to enhance the habitat for your fish.
With the least amount of maintenance, its "state-of-the-art" multi chamber offers maximum filtration.
The device has a maximum flow rate of 3000 litres per hour and is appropriate for ponds up to 4000 litres.

However, the KF 4000 will easily handle higher quantities with lighter stocking densities.
2" outlet and 1.5" inlet.
complete with Japanese matting, a multi-spray bar, filter brushes, and flocor.


4000 Litre (4 Bay)
Deep: 36" x 17" x 19"

3,000 litres per hour is the maximum flow rate.

1.5" inlet to outlet
2" lubricant

Available pump fed with spray bar full of media or not

Two drainage locations (1.5′′ solvent weld pipe is acceptable for remote drainage)

Media: flocor, brushes, filter wadding, and matting cartridge

Is delivery free?

We offer free delivery on the majority of our products over £50. This excludes live fish and bespoke filters. Delivery to UK mainland addresses is £3.95 as standard, or £6.95 for express.

How do I return a product?
Get in touch via email or phone and let us know your problem, we will then help as much as possible. A postage address will be given for you to return the product back to us, and postage will be refunded where applicable to our terms and conditions, which are in line with consumer rights.

At Steel City Koi, we offer a wide range of safe and secure payment options when shopping with us.

Accepted payment methods:

Debit/Credit Cards (Inc American Express)

BACS (for faster dispatch of products) please get in touch for this

Cash upon collection *only for live fish

Pay Later options currently include Klarna and Clearpay