4-in-1 FILTRATION SYSTEM – Contains a PP Cotton Filter with orange peel to remove sediment, rust, and other particulates, calcium sulfite balls to remove chlorine, organic salts to prevent limescale build-up, and resin ions to soften the water. LONG-LASTING – Effective for 4 to 6 months, depending on water quality of household. GUARANTEED FIT – Guaranteed to fit with all LUXE Bidet NEO Series bidet attachments. Note: This product is NOT compatible with the NEO Plus Series. EASY INSTALLATION – Attaches seamlessly to the T-adapter and bidet hose provided with your original LUXE Bidet NEO Series bidet. WORLD-CLASS CUSTOMER SUPPORT – 100% Satisfaction Guarantee: If you aren't satisfied with your purchase for any reason, please contact our Customer Care team and we would be happy to assist you.