The Kockney Koi Adjustable Undergravel Filters provide simple and effective biological and mechanical filtration. These Adjustable Undergravel Filters have been designed to fit a wide range of tank shapes and sizes. The Undergravel filters come supplied with telescopic uplift tubes with height adjustment from 30 to 50cm which can be freely rotated by 360°. The filters require an air pump or suitable powerhead for operation.

How to Install Kockney Koi Adjustable Undergravel Filters?
The Kockney Koi Undergravel Filters are supplied as individual elements, each measuring 14cm x 7cm which can be configured and arranged like lego blocks to suit different tank shapes and sizes. After laying, you can cut off excess block connectors to obtain exact dimensions. Individual blocks can also be connected perpendicularly to each other.

Kockney Koi Adjustable Undergravel Filters Sizes:
- 18” x 12” - Consists of 3 x grids / 1 x outlet pipe / 1 x air stone with airline
- 23” x 12” - Consists of 4 x grids / 1 x outlet pipe / 1 x air stone with airline
- 28” x 12” - Consists of 5 x grids / 1 x outlet pipe / 1 x air stone with airline
- 34” x 12” - Consists of 6 x grids / 2 x outlet pipes / 2 x air stones with airline
- 39” x 12” - Consists of 7 x grids / 2 x outlet pipes / 2 x air stones with airline
- 47” x 12” - Consists of 8 x grids / 2 x outlet pipes / 2 x air stones with airline

Cut Off Time

Order by 2pm for same day dispatch - Monday to Friday (Excluding Bank Holidays)

Please Note: Direct/Palletised Delivery items may take longer.

Orders Under £49

Standard Delivery (2-3 working days) - £3.99
Express Delivery (1-2 working days) - £5.99.

Orders Over £49

Standard Delivery (2-3 working days) - FREE!
Express Delivery (1-2 working days) - £2.99.

Timeframes are for standard mainland UK addresses only excluding NI, Scottish Highlands & Islands.

Palletised Deliveries

Some large oversize products, typically items weighing more than 30kg, may require delivery via pallet and as such will arrive as a kerbside delivery only. The drivers in these instances are unfortunately not permitted to assist with the pallet beyond the drop off, and cannot aid in bringing packages into the property.

Pond Planet will contact you to book in delivery on a suitable working day. Delivery will generally take place between 9am and 5pm. To ensure there are no delays with delivery, please include a contact number when placing the order.

Pond Plant Deliveries & Surcharge

Pond plants are subject to a £5.00 delivery surcharge. Pond plants are sent directly from our supplier to make sure the plants you receive are fresh and in great condition. There is no limit on how many you can order for a single delivery charge. This charge is in addition to any other carriage costs for items sent directly from Pond Planet. Please allow 5 -10 working days for delivery.

Returns

If for any reason you are not satisfied with your purchase from Pond Planet, you may return the product(s) to us within 14 days of the purchase date for a refund or exchange.

Goods must be returned in perfect and unused condition, in their original packaging. The buyer must ensures that the goods are securely and adequately packed to avoid damage and the purchaser pays all postage costs. We recommend that products are returned by recorded delivery or by a carrier that requires a signature. Pond Planet accepts no responsibility for goods returned to us unless signed proof can be provided.