Best Cartridge Pool Filters Under $100 (2026)
We selected cartridge filters under $100 by value score, prioritizing compatibility breadth, pack size, build quality, and user-reported fit for common spa and above-ground pool models
The Verdict
- Best Overall: Spa replacement filter for Pleatco PRB25-IN and equivalents — Replacement option: designed to fit Pleatco PRB25-IN and equivalents for straightforward spa filter swaps
- Best Value: POOLPURE Replacement Filter for Type A or C (Pack of 6) — Value pack: six Type A/C cartridges geared for frequent replacements and Intex-compatible systems
This roundup covers reliable cartridge pool and spa filters priced under $100, prioritized by value score for common replacement sizes and multi-pack options. Selections favor compatibility with popular spa and above-ground pool models, filter count, and reported build materials so you can compare fit and lifespan quickly
Top Picks
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1
Best Overall Spa replacement filter for Pleatco PRB25-IN and equivalents
Replacement option: designed to fit Pleatco PRB25-IN and equivalents for straightforward spa filter swaps
Replacement spa filter with trilobal filtration fabric and 25 sq. ft. area. Provides clean water and easy installation. Customers note good value and fit
- compatible replacement models
- certified filtration material
- 25 sq. ft filtration area
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2
Best Value POOLPURE Replacement Filter for Type A or C (Pack of 6)
Value pack: six Type A/C cartridges geared for frequent replacements and Intex-compatible systems
Replacement filter cartridge compatible with Type A/C pools and Intex filter pumps. Helps keep pool water clear and supports pump performance. Noted customer insight: good value and quality, with some fit and durability concerns
- Type A/C compatibility
- reusable after cleaning
- works with Intex pump models
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3
Pleatco PRB50-IN SPG Spa Pool Filter, 1 Cartridge
Standard replacement: Pleatco-compatible cartridge built for spa and pool parts requiring PRB50-IN fitment
Replacement filter for pool and spa cleaning systems. 50% open ABS free flow cores maximize water flow through REEMAY media. Easy to install with durable end caps. Customer note: easy to clean and fits various spa setups
- better water flow design
- durable end caps
- easy installation
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4
POOLPURE 5CH-352 Spa Filter replacement (2-pack)
Two-pack choice: wider filtration area and common 2-inch thread suited to routine spa maintenance
Poolpure 5CH-352 spa filter replacement with 35 sq. ft filtration and 2" MPT threads. Easy installation with top handle and screw-in design. Customers note good fit, easy cleaning, and value for money
- 35 sq. ft filtration area
- 2" MPT threads
- top handle design
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5
Type VI Spa Filter Replacement for Lay-Z-Spa & SaluSpa (Cartridge 16 Pack)
Bulk supply: Type VI 16-pack tailored for Lay-Z-Spa and SaluSpa owners who rotate filters often
Type VI spa filter cartridge designed for Lay-Z-Spa and Coleman SaluSpa inflatables. High filtration performance using premium dacron fabric to capture hair, leaves, dust, and sediment. Customers note good value and easy cleaning, with mixed durability signals
- compatible with major inflatable spas
- premium filtration material
- easy cleaning
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6
Tier1 Spa Filter Cartridge for Jacuzzi J300/J400
Model-specific fit: Tier1 cartridge made for Jacuzzi J300/J400 series to ensure correct sealing and performance
Tier1 spa filter cartridge compatible with J300/J400 models. Filtration uses Trilobal Dirt-Lock fabric for cleansed water and easy installation. Customers note good value and fit, with some mixed durability feedback
- washable & reusable
- trilobal dirt-lock fabric
- high flow spa filter
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7
Type VI spa filter 12-pack for Lay-Z Spa Intex Coleman SaluSpa
Budget bulk: 12-pack Type VI cartridges for Lay-Z-Spa, Intex, and Coleman style hot tubs needing frequent changes
12-pack Type VI spa and hot tub filters compatible with Lay-Z Spa VI, Intex VI, and Coleman SaluSpa models. Keeps water clear with dirt-locking fabric and easy installation. Customer note: good value and easy to use, though durability is mixed
- Type VI compatibility
- 12-pack for replacements
- Dirt-Locking filtration technology
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8
Spa filter for Cryspool and Jacuzzi J200 series (2 pack)
Compact two-pack: compatible with Cryspool and Jacuzzi J200 series for quick dual replacements
Replacement spa filter compatible with Cryspool and Jacuzzi J200 series; helps keep water clean and fits select models. Customers note good value and durability for regular replacement
- multi-model compatibility
- value two-pack
- keeps water clean
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9
TOREAD spa filter TRF-4950 replacement for C-4950
Direct replacement: TOREAD TRF-4950-style cartridge designed to match C-4950 filter housings
TOREAD TRF-4950 spa filter replaces Unicel C-4950 and similar models. It uses trilobal filtration fabric for 50 sq. ft. of filtration area. Customers note easy installation and durable performance across multiple cleanings
- replacement for popular filter models
- certified safe materials
- 50 sq. ft filtration area
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10
POOLPURE Replacement Filter for Type A or C (12-pack)
Larger multi-pack: twelve Type A/C cartridges aimed at owners who prefer stockpiling common Intex-compatible filters
Replacement filter cartridge compatible with Type A or C filters. Helps keep pool water clear and supports pump performance. Customer feedback notes good value and filter quality, with some fit and durability concerns
- Type A or C compatibility
- clear water performance
- pack of 12