Genuine Harmsco ST/155 Replacement Filter Cartridge

Our replacement cartridges are made specifically for Harmsco cartridge filters and follow the original manufacturer's specifications. These , reinforced polyester cartridge elements provide maximum filtration area and easily trap dirt and debris. Available in diversified sizes to meet all cartridge filter applications for Harmsco models Mineral scale, rust, and oils build up on most pool filters and are not completely removed by backwashing. This causes filtration quality to deteriorate. It's a good idea to keep two complete sets of pool filter cartridges on hand to eliminate downtime. When one becomes dirty, simply place the second set in the filter and clean the dirty set when time permits. Listed below is a list of standard Harmsco cartridge replacements If you don't see the cartridge you need, please call Customer Service for assistance. If you are unsure of which cartridge you need, please click: How to Measure a Cartridge. If you need a genuine Harmsco cartridge, please go to Genuine Harmsco Replacement Cartridges