• Common Spectra 4™ filter features/benefits
  • 7-position multi-port valve functions for Filter, Backwash, Recirculate, Pump-to-waste, Filter-to-waste, Winterize and Closed.
  • Molded, upper tank distributor for maximum water dispersion.
  • Large Access Port with V-Band Clamp allowing easy access into tank unit for efficient sand loading or filter maintenance.
  • One-piece, full diameter circular underdrain to prevent channeling of sand bed.
  • Molded of specially formulated resins for maximum durability.
  • 1 1/2" hose and fittings for positive hose seal.
  • Easy-to-read pressure gauge indicates when filter needs cleaning.
  • Automatic air relief to eliminate excess pressure which could damage the filter tank.
  • Uses #20 grade Crystal Silica Sand for exceptional filtration.
  • Drain Port for easy removal of debris.
  • Special Limited—10 Year Warranty on Filter Tank.
  • Your guarantee of excellent quality.
  • Optional Combo Base available for all models.

Model 320

  • 20" Diameter Tank
  • Durable, Resin Filter Base
  • High-strength “Pump to Filter" pressure hose for optimal durability
  • 150 lb. sand

Model 314

  • 14" Diameter Tank
  • Free Standing Filter Design
  • 80 lb. sand

Model 317

  • 17" Diameter Tank
  • Free Standing Filter Design
  • 100 lb. sand

Model 324

Hydra DE Filter

A diatomaceous earth filter that features a unique V-Grid design that provides a large surface area for D.E. distribution. In addition, the Permanently Encapsulated Filtering Grid Ends provide long grid life and less maintenance. These features are essential for good performance and a clearer, sparkling pool for you and your family to enjoy.


  • Six position rotary valve
  • (2) 11/2" x 8 ft. (1) 11/2" x 36" pump to filter hose
  • Santoprene valve gasket & tank "O" ring
  • 16” (I.D.) injection-molded tank
  • 20 sq. ft. of filtering area
  • See-through waste port with cap
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