crisptaste cripstaste tankless reverse osmosis system 800gpd high flow rate nsf 58&42 certified & sgs tested under sink water filtration system 2.5:1 pure to drain ro water filter system under sink 800 gpd ro system is up for auction in Tools & Home Improvement. The current bid is $1.00, 99% below the $104.99 MSRP, in As Is condition. This auction has ended — similar items appear in live auctions regularly.