Hot Spring Tri-X 79436 spa filter – Replaces 73178

The Hot Spring Tri-X 79436 filter is a replacement cartridge for systems compatible with part number 73178. Check the part number specified for your spa and the shape of the ends before choosing.

The right filter starts with the right part number

• 79436 replacement Tri-X filter
• Replacement for part number 73178 in compatible applications
• Tri-X deep filtration technology
• Sold individually

Dimensions and ends

Compare the height, diameter, and openings with your current cartridge and your spa's parts list. Check both ends and how it mounts on the filter support.

Compatibility

For Hot Spring spas whose parts list specifies 79436 as a replacement for 73178. The model and year are still essential; filters from the same brand are not all interchangeable.

Maintenance

Use the cleaning method specified for this generation of Tri-X. Never automatically follow the instructions for older ceramic filters.

To confirm your choice, send us the spa brand, model, year, and a photo of the current filter showing its part number.

In the box

• One 79436 replacement filter, sold individually.

Helpful details

How can you confirm compatibility?

For Hot Spring spas whose parts list specifies 79436 as a replacement for 73178. The model and year are still essential; filters from the same brand are not all interchangeable.

Which part number should you compare?

Compare the part number 79436, spa model, and year with the manufacturer's parts list.

Which dimensions should you check?

Compare the height, diameter, and openings with your current cartridge and your spa's parts list.

What type of ends does it have?

Check both ends and how it mounts on the filter support.

How many filters are included?

One 79436 filter. If your spa uses more than one, order the required quantity.

When should the filter be replaced?

Replace a damaged, deformed, or clogged cartridge that no longer restores the intended filtration when cleaned. Follow the manufacturer's instructions.