ispring rcc7ak-bn nsf certified, 75 gpd, alkaline 6-stage reverse osmosis system, ph+ remineralization ro water filter system under sink patented top-mounted faucet design for easy installation brushed nickel faucet 6-stage, alkaline is up for auction in Tools & Home Improvement. The current bid is $5.00, 97% below the $198.76 MSRP, in New/Like New condition. Bid on this item at our Dayton - Edwin C. Moses Blvd. location before the auction closes.