How much does this cost to the nearest dollar?

Express Water Heavy Metal Anti-Scale Whole House Water Filter – 3 Stage Whole House Water Filtration System – Polyphosphate, KDF, Carbon Filters – Pressure Gauges, Easy Release, 1” Inch Connections
Heavy Metal and Anti Scale Whole House Water Filter; Reduce harmful impurities and dangerous heavy metals from your entire home’s water with Express Water’s 3 Stage Water Filtration System while protecting your home from the formation of scale and corrosion. Express Water’s water filtration systems are ready to install with 1” inch standard connections. Easy to Replace Water Filter Cartridges All Express Water whole house water filter replacement cartridges are designed for quick and easy replacement to keep your system up and running. Durable Whole House Water Filter Express Water Whole Home Water Filtration Systems are constructed

Price is $550.00
Price: $549.99