Main Content Starts Here

SMBW 4000 Series™ Filters

Sheet Molded Fiberglass Tank With Backwash Valves

Sheet molded fiberglass tank with PPO resin backwash valves for long life, dependable performance and easy maintenance. This filter’s refined internal design minimizes flow restrictions requiring the least amount of pumping power, producing the maximum required flow rates – for lower utility costs.

  • Maximum Operating Pressure 50 psi
  • Corrosion-resistant 20 in. diameter fiberglass filter tank for strength and durability
  • Unique Spiro-Mite grid design provides high efficiency filtration and longer filter cycles
  • Exclusive clamp ring design is proven to be strong and reliable for quick and easy access to internal components
  • 2 in. plumbing connections provide maximum flow

Note: Operating Limits - maximum continual operating pressure of 50 psi Pool/spa (bather) applications, maximum operating water temperature (internal filter) 104°F (40°C).