The media is pleated around a polypropylene core for added strength and the ends are immersed in a thermo-setting vinyl plastisol. Embedding and sealing each end of the pleat in this fashion fuses the three components together forming a unitized end cap and gasket. An external netted sheath helps retain uniform pleat spacing in high flow and pulsating flow streams. The overlap seam is sonically welded to reduce bypass improving filtration efficiency.

Features:

• Economically priced
• Nominal 20-micron rating
• Reduces sand, sediment, silt, rust particles, and scale particles
• Pleated cellulose design maximizes dirt-holding capacity

Fits in the following filter housings: Culligan (HF-150, HF-160, HF-360, RO-2127), Omni (U25, OB1, OB5), Cuno, AquaPure, Sears, Fulflo, Teledyne Water Pik, Ace 45025 (HF-150), Ace 49560 (HF-360), Master Plumber, Flotec, Honeywell, General Electric, American Plumber, Ametek and most other water filter housings with 9.75" x 2.5" filters.

S1 filter is the same as: Culligan S1 or S1a, USFilter S1, Plymouth Products S1, Kleen-Plus S1, Sears, American Plumber W20CLa, Ace Hardware 49641, MasterPlumber TrueValue 614-800, Bruner S1, Flotec RS2, and GE FXWPC.