Filter for inflatable spa: Dimensions: 100 mm - Hole diameter: 60 mm - Height: 75 mm. spa filter cartridge for for inflatable spa filter High quality: Made of high tensile strength ABS material. The filter medium, the central rod and the cap are glued together to ensure a better seal of the tip. Very effective filtration the fabric retains much more impurities than normal fabric. This filter effectively removes hair, leaves, dust, deposits, sand, etc. Keeps Water Fresh: This massage pool filter keeps your spa water clean and fresh . Suitable for most massage pools, keep your pool water crystal clear and give your pool pump the best performance with filter cartridge type, making it more enjoyable for your family and friends. < p>Easy to clean and replace: Easy installation, no tools required. The opening has the thread, it is easy to unscrew and replace the filters. The filter is flexible and practical. Easy to adjust and clean. Please replace it every 2 weeks for best results.