amazon basics “unknown best by date ”amazon basics clumping cat litter, unscented, hard clumping formula - 14 lb bag unscented 14 lbs (pack of 1) is up for auction in Pet Supplies. The current bid is $1.50, 81% below the $7.99 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.