PRODUCT GUIDES

Hot Tub Filters

Hot tub filters are the unsung heroes of spa water care. They trap dirt, oils, and debris, keeping your water clean, clear, and safe for soaking. Choosing the right filter ensures longer equipment life, fewer chemical imbalances, and less maintenance. With several filter technologies available, understanding the differences will help you pick the perfect option for your hot tub.

Hot Tub Filters Options

There are three main types of spa filters — Pleated, Micron, and Ceramic. Each has its own advantages in terms of cost, maintenance, and performance.

Compare Hot Tub Filter Types

  • Pleated Filters

    Made from pleated polyester fabric that traps dirt, oils, and debris. The most common and affordable option.

    Cost: $ – $$

    Best For: Everyday spa owners who want simple maintenance

    Efficiency: High

    Ease of Use: Easy (rinse every 2–4 weeks)

    Life Span: 12–24 months

  • Micron Filters

    Uses advanced fabric or depth filtration to capture finer particles than standard pleats. Provides ultra-clear water.

    Cost: $$ – $$$

    Best For: Owners who want the highest water clarity with fewer chemicals.

    Efficiency: Very High

    Ease of Use: Moderate (may need chemical cleaning)

    Life Span: 12–18 months

  • Ceramic Filters

    Rigid, reusable ceramic media that can be washed and reused multiple times before replacement. Eco-friendly and long-lasting.

    Cost: $$$

    Best For: Eco-conscious owners and high-use spas.

    Efficiency: High

    Ease of Use: Moderate (requires deeper cleaning)

    Life Span: 2–5 years

Trusted Names in Hot Tub Filters

When it comes to hot tub filters, not all brands are created equal. Choosing a trusted manufacturer ensures better water clarity, longer filter life, and a perfect fit for your spa.

Brand Highlights

  • Pleatco 

    Industry leader in pleated spa filters with high dirt-holding capacity and reinforced cores for durability.

    Shop Pleatco Filters

  • ProAqua

    Offers a wide range of affordable replacement spa filters designed for compatibility with many hot tub models.

    Shop ProAqua Filters

  • Unicel

    Known for reliable pleated spa filters that balance affordability with strong water clarity.

    Shop Unicel Filters

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Frequently Asked Questions: All About Hot Tub Filters

How often should I replace my hot tub filter?

Pleated filters last 12–24 months, micron filters about 12–18 months, and ceramic filters up to 5 years with proper care.

Which type of hot tub filter keeps water the cleanest?

Micron filters capture the smallest particles, delivering the clearest water, though pleated filters remain the most cost-effective choice.

Can I clean my spa filter or should I always replace it?

Pleated and micron filters can be rinsed regularly and deep-cleaned with filter cleaner. Ceramic filters can be scrubbed and reused for years before replacement.

Still have questions? Our experts at K&J Leisure Pool Supply can help you with any questions. We offer friendly, free advice and great customer support.

Buying Tips: How to Choose the Right Hot Tub Filter

1. Decide Between Pleated, Micron, or Ceramic

Which spa filter type should I buy?

Pleated filters are the most affordable and reliable, micron filters give the best water clarity, and ceramic filters are eco-friendly with the longest lifespan.

2. Match Your Spa Brand & Model

How do I know which filter fits my hot tub?

Check your spa owner’s manual or measure your existing filter (length, diameter, and end caps). Choosing the wrong size can reduce water flow or damage the pump.

3. Factor in Maintenance Time

How much maintenance will each filter type need?

Pleated filters need rinsing every 2–4 weeks. Micron filters may need chemical cleaning for fine particles. Ceramic filters require deeper scrubbing but last longer.

4. Invest in Quality Brands

Are OEM or aftermarket filters better?

Brands like Pleatco, Filbur, and Unicel offer high-quality pleated and micron filters. OEM ceramic or micron filters from Jacuzzi and Sundance ensure the best fit.

Still unsure? Our experts at K&J Leisure Pool Supply can help match you with the best heater for your spa. We offer fast, free shipping and customer support.

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Shop Hot Tub Filters

Keep your spa water crystal clear with the right filter! Browse our full collection of Pleated, Micron, and Ceramic Hot Tub Filters, compare trusted brands, or contact our support team for help finding the perfect fit for your spa.

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