Unicel C-6430 Replacement Filter Cartridge for 30 Square Foot Hot Springs Spas/Watkins Mfg,White
$33.31
Price: $29.99 - $33.31
(as of Sep 23, 2025 01:29:48 UTC – Details)
30 Square Foot Hot Springs Spas/Watkins Mfg.. Note: Models dated after 1990. Replacement for: Hot Springs Spas 31489 (Note: Model dated after 1990.); Hot Springs Spas 71825 (Note: Model dated after 1990.); Hot Springs Spas 71826 (Note: Model dated after 1990.)
Diameter: 6-inch; length: 10 1/2-inch
Top end cap: open, 1 15/16-inch inner diameter; bottom end cap: open, 1 15/16-inch inner diameter
Pleat count: 124; filter media: 4-ounce reemay 2040; filter area: 30 square feet
Get more efficient filtration and better water clarity with Unicel filters
Longer time between cleanings; meets oem specifications
Customers say
Customers find the filter cartridge works well and fits perfectly in their spas. They appreciate its good quality and consider it good value for money.
8 reviews for Unicel C-6430 Replacement Filter Cartridge for 30 Square Foot Hot Springs Spas/Watkins Mfg,White
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$33.31
jessie barkley –
it works!
much prefer these to the newer ‘hard’ filters …. been using them for almost 40 years … in two countries and three states. good quality, good price …. easy for an old lady to use.
Cheryl Okeson –
Hot tub
Affordable
Happy Rafters –
Filter cartridge
The price was great and the product works great in my Hot springs spa. What can you say about a filter? I buy mine on Amazon as they are about a third of the price in the spa store. Happy with product and purchase.
Big Rock –
I have a 1987 Hotsprings tub and this works perfect. It’s smaller in diameter than the last one …
I have a 1987 Hotsprings tub and this works perfect. It’s smaller in diameter than the last one I had and seems to allow more flow through.
Meli S –
So much cheaper and good quality.
Use this ALL the time to replace my filter. So much cheaper and good quality.
Joseph Roberts –
Perfectly adequate replacement for the OEMâs
These filters are not as good as the super high quality originals that came with my a Pentair pool filter but they are perfectly adequate and do a good job. They are what all the pool service companies use.
Chris –
Save money!
Fits hot tub great, no different from higher priced filter from pool store!
R. Jain –
Okay so far
We ordered this replacement cartridge for our hot tub. Only time will tell how good the quality is. But the shipping and the rest of the process went smoothly.