PureT (UDF-20W-BP) 20"x4.5" Big Blue GAC Filter Cartridge with Blue End Cap Omnipure (E5420) 8"x2.5" Diameter E-Series 1 Micron Carbon Block replace the filter sooner—phosphate media

replace the filter sooner—phosphate media exhausts faster in high-hardness conditions

or bacteriostatic protection

5-Year Shelf Life pH 7

High Purity KCl

High-density carbon block removes chlorine taste and odor while filtering sediment down to 1 micron

PureT (UDF-20W-BP) 20"x4.5" Big Blue GAC Filter Cartridge with Blue End Cap Omnipure (E5420) 8"x2.5" Diameter E-Series 1 Micron Carbon Block replace the filter sooner—phosphate mediaThe PureT UDF 20W BP is a refillable 20"x4. 5" Big Blue cartridge that lets you fill your own GAC or specialty media for custom whole house filtration. The dual opening design with blue end caps and internal sediment screen reduces pressure drop while preventing channeling. SPECIFICATIONS Technical Details Model Number UDF 20W BP Dimensions 20" x 4. 5" Filter Type Refillable GAC cartridge End Cap Color Blue Opening Style Dual end removable Internal