Durable corrosion-proof filter tank of color-fast material for long-lasting, all-weather performance. 7 position Vari-Flo valve provides maximum flow at lower pressure drop. Large pressure sand/water drain for rapid winterizing or servicing. Flange clamp design allows 360 rotation for easy installation. Integral top diffuser ensures even distribution of water over the entire sand bed for maximum use of the filtration area. Precision engineered umbrella-fold self-cleaning laterals for balanced flow and backwashing, plus easy serviceability. 

For both new pool and aftermarket installations Pro Series filters provide efficient flow, totally balanced backwashing and an advanced self-cleaning under-drain system for the best value in filtration.