Disappearing Waterfall Kit 28' x 4-6'This is a complete kit for building beautiful disappearing water feature. You can have up to a 28 long by 4' wide stream with 6 x 6 x 2 1 2 deep reservoir. Includes: Stream: 10 x 33, Reservoir: 15 x 15 45 mil EPDM liner Stream: 15' x 22'; Reservoir 15' x 15' Geo textile Underlayment Universal Check Valve Assembly x2 23 Spillways Medium pump vault 2 x 50 black flexible PVC pipe 6000gal Submersible Pump 7 Large Matrix Boxes, 7 Small Installation kit