5′ x 5′ Pond Decor Kit | 3-in-1 Filter, Waterfall & LightsUpgrade Your Backyard Oasis with the 2. 5 All in One Water Feature Kit The 5 x 5 Pond Starter Kit is a premium, large scale pond solution that combines a multi stage filtration system, a 24 inch stainless steel waterfall spillway, and RGB submersible pond lighting. Its everything you need to build a healthy, glowing, and low maintenance water feature for koi ponds, backyard gardens, and resort style landscapes. Smart Pond Filtration with UV Clarifier