The Lee's 10 Premium Undergravel Filter is built for aquarists who want a sturdy bottom filter. It measures 10 x 20 in and is boxed ready to use.
Size: 10 x 20 in
Larger plates reduce the number of plates needed
Extra plate strength, preferred by many saltwater aquarists
Rinse the plate before setting it under your gravel and connect it to a lift tube and pump. Check that the plate lies flat on the bottom before adding gravel.