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Northern Lights Hot Tubs

The original cedar hot tubs company

Main logo header + footer
Northern Lights Hot Tubs

The original cedar hot tubs company

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Northern Lights Filter Cartridge Blue
Northern Lights Filter Cartridge Blue
Northern Lights Filter Cartridge Blue
Northern Lights Filter Cartridge Blue with measurements
Click to enlarge
    Northern Lights Filter Cartridge Blue
    Northern Lights Filter Cartridge Blue
    Northern Lights Filter Cartridge Blue
    Northern Lights Filter Cartridge Blue with measurements
    Home Water quality Filter Cartridge
    Spa calcium increaser for balanced water hardness
    Calcium increaser €13,40
    Back to products
    Pleatco Spa Filter Wash
    Filter Cartridge Cleaner €4,90

    Filter Cartridge

    €39,50

    A spa filter cartridge is essential to your hot tub or spa-system. It delivers efficient and consistent filtration, helping to keep spa water clean, clear, and hygienic. Its large filtration surface supports optimal water flow and reliable debris removal.

    • Description
    Description

    A spa filter cartridge is a key component for maintaining clean, clear, and healthy tub or spa-water. Designed with a large filtration surface area of 50 square feet (4.65 square meters), it effectively captures dirt, debris, oils, and other contaminants while maintaining optimal water flow through the filtration system.

    The generous filtration area improves overall efficiency, allowing the filter to trap more impurities while reducing pressure on the spa pump. This supports smooth water circulation, enhanced water clarity, and extended equipment lifespan.

    Manufactured with high-quality material and 212 pleats, the cartridge is built for reliable performance and long-term use. It is easy to install, remove, and clean, making routine maintenance straightforward and efficient. Regular cleaning and timely replacement help ensure optimal spa hygiene and consistent water quality.

    Suitable for a wide range of spa systems, this filter cartridge is an excellent choice for spa owners seeking dependable filtration performance and long-lasting results.

    Note: This filter is compatible with all Northern Lights hot tubs and a perfect as a replacement for the standard grey filter.

    Northern Lights Filter Cartridge Grey

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      Main logo header + footer

      Northern Lights Hot Tubs started as a small family business in the 1980’s. From the early days we have focused on manufacturing the highest quality wooden hot tubs. Today you will find our products in 100+ countries worldwide.

      CONTACT

      Northern Lights Pickup Depot
      By appointment only

      2870 Puurs - Belgium

      +3232487611

      info@northernlightshottubs.com

      OUR COMMITMENT

      • Highest quality hot tubs
      • Easy assembly
      • 100% red cedar wood
      • 20+ years of craftmanship

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      Northern Lights® is a registered trademark. Copyright© 2026 All rights reserved

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      • Home
      • DESIGN YOUR TUB
        • 3D configurator
      • OUR HOT TUBS
        • Specifications
        • Models and sizes
        • Western red cedar
        • Heating methods
        • Maintenance
        • Assembly
        • Example designs
      • Gallery
      • PRACTICAL INFO
        • Frequently asked questions
        • Pre-project documentation
        • Tips & information
        • Featured projects & awards
      • SHOP PARTS
        • Product categories
        • Your account
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