Watkins Hot Spring 71828 spa filter – 65 sq. ft.

The Watkins Hot Spring 71828 filter is a 65 sq. ft. replacement cartridge, sold individually. Compare the two openings with those of the filter installed in your spa.

Compatibility: choosing the right filter

Some Watkins Hot Spring systems use part number 71828 or the C-8465/PWK65 format. Check the part number and dimensions.

Features and dimensions

• Filter area: 65 sq. ft.
• Diameter: 8 1/2 in.
• Length: 10 1/2 in.
• Top and bottom openings: 3 in.
• Contents: 1 filter

Equivalent part numbers to compare

• PC-3960
• Unicel C-8465
• Pleatco PWK65

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

Maintenance and replacement

Rinse the filter media regularly according to the manufacturer's recommendations. For a more thorough cleaning, use a cleaner suitable for spa filters. Replace the cartridge if it is damaged, deformed, or can no longer be cleaned effectively.

Need help choosing?

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