Oasis Pond-free products bring the quality and strength you've come to expect from Atlantic to the retail market, with more compact, easier to install products that are built to withstand the same abuse as our Pro products. Count on Atlantic's Oasis Series to deliver the performance you need for all your smaller pond-free features. Oasis FastFalls (SP1600) Features: 1. Internal baffles diffuse the water for an even flow across the spillway 2. Raised front radius retains natural camouflage 3. One-piece design eliminates any chance of leaks due to öover pumping' 4. Oasis FastFall comes with an installed 1_" Spinweld fitting 5. One-piece liner flange and molded-in inserts ensure a secure liner attachment