Sequel DE (Diatomaceous Earth) Filter

Available in: Sequel I™ and Sequel II™

Sequel DE (Diatomaceous Earth) Filter

Doughboy’s outstanding line of filtration systems consistently deliver purity that is unrivaled in the industry.

With Doughboy’s Diatomaceous Earth Filtration Systems, sparkling clear water is easily obtained. The Sequel I Plus and Sequel II feature a unique V-Grid design that provides a large surface area for D.E. distribution. In addition, the permanently encapsulated filtering grids provide long grid life and less maintenance.


  • Exclusive V-Grid design
  • Permanently encapsulated filtering grid ends
  • Tough, abrasion-resistant ABS construction
  • One-piece tank cover and valve assembly
  • Special 10 Year Limited Warranty on Filter Tank and Tank Cover

Sequel I™

  • Four Position Rotary Valve with Easy Grip Handle
  • 2 ea. 11/2" x 8 ft. & 1 ea. 11/2" x 36" pump to filter pressure hose
  • Strengthened V-Grid Adaptor
  • 15" (I.D.) injected molded tank
  • 12.5 sq. ft. of filtering area
  • Rugged Top Cover Flange Lip

Sequel II™

  • Six Position Rotary Valve
  • 2 ea. 11/2" x 8 ft. & 1 ea. 11/2" x 36" pump to filter pressure hose
  • Santoprene® Valve Gasket & Tank “O” Ring
  • 16" (I.D.) injected molded tank
  • 20 sq. ft. of filtering area
  • See-thru waste port with cap

Owner's Guide