Maintain clean, clear water with these 5 x 2.5 inch cold plunge water filter cartridges designed to capture sediment and fine debris before it circulates through your system. The 20 micron pleated sediment media traps sand, rust, and dirt while supporting high flow performance to help maintain steady water pressure and efficient circulation. Built for quick routine maintenance, each cartridge installs easily in most standard 5 x 2.5 inch filter housings and is compatible with ice bath / Ice Pod / cold plunge systems / plunge tub / spa / hot tub / pool / water chiller setups. This 4-pack helps you stay on schedule with replacements to reduce downtime and keep water fresh for recovery and relaxation.