Complete Concrete Venturi Skimmer, 2” SLIP, - White. By using a Venturi, this skimmer doubles the cleaning power without increasing energy costs. Massive 9″ deep basket (twice the size of standard skimmer baskets), can hold 289 cubic inches of debris. Basket and vacuum plate lock into place instead of floating up when the pump is off. Weir door is spring-loaded for easy removal – no screws. NSF approved for 75 GPM – highest in the industry.