The Waterway 540-8550 is a Renegade 2" Socket White Wide-Mouth Vinyl Liner In-Ground Skimmer with 13" Throat. The Renegade skimmer from Waterway is the only choice you'll need to make for your vinyl liner pool installations. The Renegade In-Ground Vinyl Pool Skimmer is designed to work with all existing vinyl liner steel; polymer or fiberglass pool walls. Available in a wide variety of models - either standard or wide mouth; in your choice of white or gray; the Renegade includes a lock-down vacuum plate; extension collar and one of the largest skimmer baskets available. It twist-locks to prevent floating and easy access. Renegade's spring-loaded weir door makes replacements a snap.