These 20 x 2.5 inch sediment cartridges fit 20-inch standard filter housings. This page carries options from Pentek, Tier1, Watts, Purtrex, Hytrex, Hydronix and 3M Aqua-Pure, in micron ratings from 1 to 50. Match the length, diameter and micron rating of your current cartridge.
A 20-inch cartridge holds more filter media than a 10-inch cartridge of the same diameter, because it is about twice as long. It needs a 20-inch standard housing. If your housing is 10 inches, shop our 10 x 2.5 sediment filters instead.
A 20 x 2.5 filter is a nominal size for a cartridge about 20 inches long and 2.5 inches in diameter. It fits 20-inch standard housings, so match the size printed on your current cartridge before ordering.
Choose 1 or 5 micron for fine sediment, such as silt, or 20 to 50 micron for coarser sediment. Lower-micron cartridges load faster, so the highest rating that handles your sediment will need changing least often.
How often to change a 20 x 2.5 sediment filter depends on your water and the cartridge, so follow the cartridge maker's guidance on the product page. Finer cartridges load faster and usually need changing sooner.