How much does this cost to the nearest dollar?

iSpring NSF Certified, 75GPD Under Sink Reverse Osmosis RO Drinking Water Filtration System with Alkaline Remineralization Filter and UV Ultraviolet Filter
The Reverse Osmosis system under sink consists of layered filtration built around reverse osmosis (RO) technology that removes over 1000+ different kinds of contaminants. The combination of both GAC and CTO filters in the 2nd and 3rd stages provides more protection against harmful chemicals than CTO alone. This iSpring water filter system features a 75 gallon-per-day capacity RO membrane, it can handle the drinking water needs of even a large family. Certified to NSF/ANSI 58, this Reverse Osmosis under sink mounted water filter and Point-of-use water softener contains 

Price is $310.00
Price: $310.39