Grefilt PWK30 hot tub filter 5-pack for easy replacement and clear water.
Grefilt hot springs compatible filter fits multiple models for reliable filtration.
Grefilt 30 sq ft filter core provides strong filtration and durability.
Grefilt durable end caps safeguard spa performance and longevity.
Grefilt NSF certified materials ensure safe filtration for your family spa.
Grefilt easy install spa filter simplifies setup without tools.
Grefilt compatible models include Hot Springs and Watkins for flexible replacement.

Grefilt

Grefilt PWK30 Hot Tub Filter 30 sq.ft - 5 Pack | Hot Springs/Watkins Compatible

High-performance patio lawn and garden made for confident daily results

$97.51

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Why customers choose PatioZora Garden

Upgrade your spa filtration with the Grefilt PWK30 hot tub filter. This compatible replacement is designed to fit Hot Springs PWK30 and related models, delivering reliable filtration across sessions and helping you maintain a welcoming, clean soak.

In everyday use, you may notice less maintenance time and steadier water clarity. The five-pack lets you rotate between filters or stock up for upcoming seasons, reducing downtime when you need a fresh cartridge quickly.

Whether you run a weekend soak or daily sessions, this cartridge is designed to help maintain clean water by capturing debris, oils, and impurities more efficiently, thanks to its larger filtration area. The five-pack option supports convenient rotation during season changes or heavy-use periods, so you can minimize downtime while ensuring you always have a ready replacement.

Key specifications

  • Length 10 1/2 inches; outer dimension 5 7/8 inches; top and bottom openings 1 15/16 inches
  • Filtration area 30 square feet; core material PP
  • Package quantity 5 filters
  • Compatibility Hot Springs PWK30, Watkins models 31489, 71825, 73178, 73250, Unicel C-6430, Filbur FC-3915, and more

Care, durability, and safety

  • Easy installation with no special tools; rinse every two weeks for optimal performance
  • Corrosion-resistant end caps and reinforced polyester fiber for long-lasting filtration
  • NSF-certified materials support safe, reliable filtration for your spa

Note: This is a compatible spare part offered by Grefilt as an independent brand; the original manufacturers’ names and numbers are shown for reference only.

FAQ

Q: Is this filter compatible with Hot Springs PWK30 and related models?

A: Yes. It is a compatible PWK30 replacement for Hot Springs and common Watkins models; check exact dimensions to confirm a fit.

Q: What maintenance does this filter require?

A: Rinse every two weeks, air dry, and reinsert; regular cleaning helps filtration and spa water clarity.

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