How much does this cost to the nearest dollar?

Royal Berkey Gravity-Fed Water Filter System 3.25 Gallon with 2 Black Berkey Elements, 2 Berkey PF-2 Fluoride and Arsenic Reduction Elements
Berkey systems are designed to meet the speciﬁc needs of consumers seeking practical and cost-eﬀective water ﬁltration solutions. Berkey systems are simple and easy to use and require no electricity, costly installation, or tools, providing economical, long-lasting water ﬁltration for just pennies a gallon. Berkey systems are used every day in homes around the world by discerning consumers who trust the quality of Berkey systems to meet their drinking water needs. Berkey gravity-fed water systems are available in 7 sizes. ENJOY GREAT-TASTING T

Price is $526.00

Price: $525.99