Fette Filter - Demineralization Cartridge Compatible with Select Humidifier Model #'s 7133, 7135, 7142, 7144, 7145, 7147, U600, U650, 2055, 2055A, E2441, U200, U700 (Pack of 1)<p>Contains 1 Cartridge<p>BUILD FOR PERFECT COMPATIBILITY: Our cartridges are designed to be compatible with Humidifier Models#'s 7133, 7135, 7142, 7144, 7145, 7147, U600, U650, 2055, 2055A, E2441, U200, U700 <p>GUARANTEED SATISFACTION: We have made a complete commitment in making you happy with your purchase. But, in a rare case if you aren’t "5-STARS HAPPY" simply let us know and enjoy 100% cash back. No questions! No Fine print!<p>Packing May Vary<p>This is an After Market Replacement Cartridge.