Hot Spring Tri-X 79436 spa filter – Replaces 73178

The Hot Spring Tri-X 79436 filter is the new-generation replacement for part number 73178. Its washable three-dimensional media traps particles at the surface and throughout the depth.

Compatibility: choose the right filter

Certain Hot Spring Grandee, Highlife, Landmark, Summit, Classic, Jetsetter, Prodigy, and Sovereign models. Compatibility varies by year and configuration: confirm part number 73178 or 79436 in your spa manual.

Features and dimensions

• Current part number: 79436
• Previous part number: 73178
• Filter area: 65 sq. ft.
• Outside diameter: 6 7/8 in.
• Length: 10 1/2 in.
• Top and bottom openings: 1 15/16 in.
• Media: Washable Tri-X
• Contents: 1 filter

Equivalent part numbers to compare

• Hot Spring 73178

Before purchasing, compare the part number, dimensions, and both ends with your current filter. An equivalent part number must also match your system configuration.

Care and replacement

Clean the Tri-X filter according to Hot Spring recommendations for your model. Replace it when it is damaged or can no longer be cleaned effectively.

Need help choosing?

Write to Piscine Hippocampe with the brand, model, spa year, and a photo of your filter showing its part number. You can also browse our spa replacement cartridges.