2 Pack 33 Gallon Water Storage Module Block System Water Garden Matrix Block for Pond Free Waterfalls Disappearing Waterfall or Fountain Features 2 33 Gallon is up for auction in Patio, Lawn & Garden. The current bid is $5.59, 95% below the $121.59 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.