***Omnipure Filters E-Series E5515SB is a Subsitute Filter for WFA12, S-54 & H-54*** Omnipure E5515-SB Everpure Compatible Water Filter Made in USA This is a suitable replacement filter for Everpure Water Systems using the QL1, QL2 and QL3 filter heads. Compatible with the following Everpure Cartridges: 2CB5, 2CB5-K, 4CB5, H- 54, S-54, WFA-12 and more. If you cartridge is not listed please contact us. Service Life 1 year / 1250 Gallons. The Omnipure E5515 SB is a Suitable Subsitute Water Filter. The 5515 SB Filters suit the QL1, QL3 and QL3B Everpure style Filter Heads. E5515 SB filter will replace the following Everpure filters and systems S54, H-54, EV9252-66, S-54, EV9720-06, WFA 12, WFA-6, WFA Pro1500-RC, EV9302-12, RV, ADC, EV9592-01, ADC-6, EV9252-67,EV9592-06, AC, EV959201, EV9252-67, ADC, EV959-206, Hydrotwist WFA12, Full timer used in RV, Caravans, Under kitchen sink filters etc.. The Omnipure E5515-SB filter cartridge will remove Dirt, Rust, Sediment Particles, Chemicals, Chlorine, Lead etc.. and will also give you protection from Cyst. 1 Micron Dual Action Filter. Cartridge recommended service life 12 months or 4500 litres Rated to 125PSI pressure. Dimensions 283mm x 75mm