Harmsco® HC/170TC-AM SureSafe Pool Filter Cartridge Discontinued NS Series couplings are the

NS Series couplings are the smallest plastic non-spill couplings on the market

Effective long term

and highly consistent quality product

25% lead content

Harmsco® HC/170TC-AM SureSafe Pool Filter Cartridge Discontinued NS Series couplings are theHarmsco HC 170TC AM cartridges offer superior water clarity, polish, and sparkle for your swimming pool water. The HC 170TC AM cartridge is composed of polyester with anti microbial Silver Zeolite technology. Combining silver into the filter media enables the cartridges to help eliminate odor causing bacteria and inhibit growth of destructive mold and mildew. Its pleated media offers up to 12 times more surface area than other cartridges, meaning