Grefilt 31489 hot tub filter front view shows precise fit.
Grefilt 31489 filter packaging indicates a convenient three-pack.
Close-up of Grefilt 31489 cartridge core highlights durable PP core.
Grefilt 31489 filter with NSF label emphasizes safety and quality.
Bottom end-cap design on Grefilt 31489 filter shows corrosion resistance.
Grefilt 31489 in use during spa setup demonstrates easy installation.
Top open end of Grefilt 31489 for quick cleaning access.

Grefilt

Grefilt 31489 Hot Tub Filter - 30 sq.ft, 3-Pack, Compatible with Hot Springs PWK30, C-6430, 71825

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

$63.26

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Premium patio lawn and garden quality selected for United States (USA) customers.

Routine pack Build your routine pack (3)

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Free shipping on every order. Most orders arrive in 4–9 business days, with tracking.

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During high demand, deliveries may experience short carrier delays. Tracking updates remain active for every order.

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Questions before checkout? Email patiozora@gmail.com and we reply within 1 business day.

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Why customers choose PatioZora Garden

Overview

Meet the Grefilt 31489 hot tub filter, a compatible cartridge designed to replace a range of Hot Springs models with a precise fit. It delivers a generous filtration area to help your spa water feel cleaner and clearer during routine use, turning after-work soaks into a more refreshing experience.

Built for home spa owners who value easy care and dependable performance, this filter stands up to regular spa sessions and the occasional splash of a weekend soak. The 3-pack packaging provides ongoing maintenance without frequent repurchase, making it convenient for steady filtration cycles.

Why shoppers choose Grefilt 31489

  • Precise fit across popular Hot Springs models for confident replacement
  • NSF certified materials help keep water quality aligned with US standards
  • Easy installation with no special tools required
  • Long lasting design with corrosion resistant end caps and reinforced polyester fiber
  • Three pack provides value and a steady filtration cadence
  • Filtration area of 30 sq ft supports thorough cleansing

Compatibility and safety

This is a compatible spare part; brand names and part numbers are for reference only. It supports PWK30, C-6430, 71825, 73178, 73250 and other Hot Springs variants.

Maintenance tips

  • Rinse and remove debris regularly; clean every two weeks for optimal performance
  • Inspect end caps and core for wear and replace as needed

Specifications

  • Length 10 1/2 inches
  • Outer dimension 5 7/8 inches
  • Top open 1 15/16 inches; bottom open 1 15/16 inches
  • Filtration area 30 sq ft
  • Core PP core
  • Package quantity 3 filters

FAQ

Q: Is the Grefilt 31489 filter compatible with Hot Springs PWK30 and C-6430 models?

A: Yes. This cartridge is designed to replace several Hot Springs models, including PWK30 and C-6430; verify your model numbers in our specs before purchasing.

Q: How often should I clean the Grefilt 31489 filter?

A: We recommend cleaning every 2 weeks for optimal performance and longer life.

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