1800 Litre Round Rigid Pond Liner


2 koi carp may not seem like a lot but they can grow up to 24 inches and up to 36 inches for jumbo koi and they need plenty of room to maneuver and grow. You are able to stock more goldfish or smaller fish just remember the general rule of thumb for keeping fish in your pond is to have 1 square foot surface area for every inch of fish.




1800 Litre Round Rigid Pond Liner


Here customers can view our 1800 Litre Round Rigid Pond Liner. It is a one piece freestanding preformed round pond. It measures at 72″ (183 cm) diameter and 27″ (69 cm) deep and has a volume of 397 Gallons (1802 litres). Tapers from top to bottom at 5 degrees inclusive. Weight when empty 30 kgs. This rigid pond liner is environmentally friendly as it is manufactured from food grade chemically inert polyethylene. This liner is easy to install and can be used as raised free-standing pond, half raised or buried into the ground. Installing one of our liners supports and attracts diverse wildlife. We advise that if you keep the water well filtered you can keep up to 2 koi carp but no more in this size pond.


This rigid koi pond is highly durable and very strong so much so we offer a 25 year guarantee! The liner is designed to withstand all weather conditions and will not crack. Please ensure the pond is installed correctly by making sure the ground is flat so that the water isn’t putting too much pressure on one side of the tank.


Pond volume = 397 gallons (1802 litres)

Largest main dimensions –

Diameter = 183 cm (72″)

Depth = 69 cm (27″)


Black box filtration system

If you are looking at keeping fish in this size liner we suggest adding the black box filtration system. This system includes all the components to keep your pond water quality to a standard that will ensure your fish stay healthy. Included in this system is the 1800 Litre Round Rigid Pond Liner, a pond pump with 2000 litre per hour flow and attractive fountain feature, a mega black box with 11w UV,  2 metres of 20mm flexible pipe and hose clip to ensure the flexible pipe is secure. Setup is straightforward, the pond pump sits at the bottom of the pond with the fountain feature poking out the water. The flexible pipe then attaches to the pump which goes to the black box filter connect via a stepped hose connector and then the water trickles out of the black box filter back into pond.

Contact us via product enquiry if you require any extra information.








Expected delivery time of between 2 and 3 weeks. Other orders in your nearby area may speed up this process significantly.

Price quoted includes all Costs and Delivery to UK mainland.


Please leave a review for this product


Awesome product

Rated 5 out of 5
July 30, 2021

Fantastic pond excellent really nice and can make any surround for it I have mine raised and will have timber frame made to go round good value for money and plenty big enough for my fish
Definitely recommend

Avatar for Richard Taylor
Richard Taylor


Rated 5 out of 5
May 31, 2021

Ordered this in spring arrived earlier than was expected , driver was really helpful.
Good strong liner , pond up and running .
Pleased with purchase would not hesitate to order another if needed.

Avatar for Martin Chidley
Martin Chidley

Great pond

Rated 5 out of 5
April 7, 2021

Great quality and friendly service

Avatar for Daniel

7200 litre pond

Rated 5 out of 5
September 17, 2020

Ordered this in the summer and 3 weeks later it was here, driver very helpful , got some funny looks from neighbours as they couldn’t work out what it was ,managed to get it over the fence with the help from a few mates , i went 2 ft down and 2 ft above ground, pond is up and running , filter etc all fine , fish are happy , better than a butyl liner , much easier to install , pleased with purchase .

Avatar for William Charman
William Charman

No Title

Rated 5 out of 5
September 8, 2020

Just had my 7200 litre Kio pond delivered today and am very impressed with it. The delivery man was very helpful and helped me to lift it over my outhouse as that was the only way to get it in to my back garden.
So a big thank you to him for all his help.
Would recommend Ponds 4 Fish for there help and service.

Avatar for Rob Froggett
Rob Froggett

Additional information

Weight 30 kg
Dimensions 183 × 183 × 69 cm

On its own, With a pump, With a pump & blackbox filtration system

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