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 Both pre-filters in one package

Both pre-filters in one package for simplified maintenance and inventory—replace both at the same interval for consistent protection

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

Double pleated construction with full 1¼ inch PVC glue socket connections delivers high flow rates with minimal pressure drop

High Purity KCl

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 Both pre-filters in one packageThe 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