PREMIUM CARBON FILTRATION: The Brondell Swash Filter uses granular carbon to improve water quality and extend the life of your bidet toilet seat; Carbon-based filtration outperforms standard cloth-based filters for fresher and cleaner water in your bidet TRIPLE-POWER FILTER: The Swash toiler bidet filter reduces chlorine, heavy sediment & particulates, and stops calcium buildup; Chlorine can cause skin irritation; Sediment damages bidet performance; Calcification causes costly repairs & early replacement COMPATIBILITY: This filter attachment works with all Brondell electronic Swash bidet seats as well as most other brands and models of electric bidet seats; Requires a ½-inch bidet hose connection EASY TO INSTALL: Installation is a quick home improvement project with 4 steps; 1 - Use water shut off at wall to stop flow; 2 - Connect T-valve to Swash Filter and fill valve; 3 - Connect Swash Filter to toilet bidet hose; 4 – Turn water flow back on LASTS UP TO 6 MONTHS: The Brondell SWF44 Bidet Seat Water Filter System keeps your bidet seat and bidet sprayer working trouble-free for up to 6 months; Replace it once per year to maintain freshness and cleanliness in your bidet sprayer system