Home / Find my part / Hot Spring Watkins / Hot Spring 30 sq ft (PWK30)
Parts for your model · verified 2026-07-03
Replacement parts for the Hot Spring Watkins / Hot Spring 30 sq ft (PWK30)
The exact compatible parts we've verified fit this model. Guaranteed fit
| Brand | Hot Spring |
|---|---|
| Model | Watkins / Hot Spring 30 sq ft (PWK30) |
| Typical use | Hot Spring / Watkins spas (non-Tri-X), 30 sq ft |
| Also known as | PWK30, C-6430, FC-3915, Watkins 31489, 0969601, Hot Spring |
Compatible parts
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FAQ
What replacement filter fits the Hot Spring Watkins / Hot Spring 30 sq ft (PWK30)?
It uses Watkins 31489 (Replacement Spa Cartridge for Hot Spring / Watkins — Compatible with Pleatco PWK30 / Unicel C-6430 / Filbur FC-3915). Our compatible version matches that fit and carries a fit guarantee.
How often should I change the part on a Hot Spring Watkins / Hot Spring 30 sq ft (PWK30)?
Typical replacement is Change every 4 months, sooner in dusty or pet homes.