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Hot Spring® Tri-X Replacement Filter


The Tri-X 73178 ceramic replacement filter is a factory-original filter for Hot Spring Spas. With 2x the filtration efficiency, the Tri-X 73178 improves water clarity, requires less cleaning and has an estimated 5-year lifespan.

Made by Watkins Mfg., the Tri-X 73178 is a factory original replacement filter for Hot Spring spas. Tri-X filters are made with ceramic pleats and are designed to filter twice the water per minute as a standard paper filter. The Tri-X has a life expectancy of up to 5 years if maintained properly.

Filter Specs

  • Filtration Sq Ft: 65
  • Outer Diameter: 6″
  • Length: 10-1/2″
  • Top: Open 1-15/16″
  • Bottom: Open 1-15/16″
  • Pleat Count: TRI-X
  • Media Weight: Ceramic

Compatible With: Hot Spring High Life Series Hot Tubs.



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