The 16’ x 21’ Pond Package is a complete kit designed to make building a large water garden or koi pond simple. With a capacity for a 16' × 21' pond, this package includes a Full-Size SkimmerFilter, a 16" FilterWeir waterfall spillway, EPDM liner, underlayment, pump, tubing, and all necessary plumbing components. The kit provides mechanical and biological filtration, helping maintain healthy water while creating a natural waterfall feature.