• Top diffuser ensures even distribution of water over the top of the sand media bed
• All internal piping is 2" to give smooth, free-flowing performance
• Automatic air relief purges any trapped air during operation of the filter system
• Unitized, corrosion-proof, spherical filter tank molded of rugged, colorfast reinforced thermoplastic for maximum strength and longer life
• Optional valve and coupling selections for plumbing ease and versatility.
• Choose from 7-position Vari-Flo™ valve, 2-position slide valve or 1 1/2" SKT x 2" SLIP connectors for multiple (tandem) filter installations
• Precision engineered umbrella-fold self cleaning laterals for balanced flow and backwashing, plus easy serviceability
• NEW Large pressure sand/water drain for rapid winterizing or servicing
• Durable, flanged inspection cover provides convenient access to top of filter 
• 1 year limited warranty
• Owner's Manual

Thanks to its spherical design, the Pro Series Plus evenly distributes the high pressure and stress that are common with solar heating systems, spas, fountains and in-floor cleaning systems. Its impressive under drain assembly uses 3,800 slots on 10 self-cleaning laterals that ensure totally balanced flow and backwashing. The overall result is a minimal-maintenance filter with greater strength and longer life