Medium Jetlifter (20 mm) in operation, clearly showing the flow. 

Mattenfilter installed in a 20x20x60 cm aquarium. The 30 PPI foam is 4 cm thick with a 20 mm medium Jetlifter, which produces a flow rate of 7 to 7.5 liters per minute.

Rearview of the Jetlifter in place. The hole or groove is cut at the same height as the water surface.

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A 25 mm wide plastic frame is used to create a space between the sponge and the glass. This allows for even water flow and avoids any dead spots.

There are three sizes of Jetlifters: 12 mm - 20 mm - 25 mm (½", ¾", and 1"). The flow rates of these Jetlifters are very good compared to any other that I have seen or made myself. The rates are about ½" = 3 Liters per min. ¾" = 7 L/m. 1" = 12 L/m. Naturally, the amount of air supplied will play a big part. It is easy to see when a Jetlifters is working at its optimum flow. The manufacturers of the Jetlifters also offer longer tubes to facilitate their use in taller aquaria, as well as freestanding filters such as Cube filters.

For UK only, custom sizes of filter sponge can be obtained directly  Sponge query  Because there is a fixed supplier delivery charge (£20 ), this service is best suited for orders of 10 units or more.

 Manufacturer and supplier of the jet lifters 

https://www.luftheber-shop.de/

For fish keepers in the USA SwissTropicals is the HOME OF SIMPLE AND EFFICIENT FILTRATION SYSTEMS based on the Poret® and Jetlifter? brands of products. We are the North American distributor for wholesale* and retail of these products.