Tetra™ U Block is a high-density, lightweight polyethylene block for water filtration. Hailed by contractors for its easy installation, Tetra™ U Block is easily retrofitted into existing filters. Specify this popular corrosion-free block underdrain for years of dependable service. When a lower profile block is called for, consider the Tetra™ LP Block. An underdrain installation is only as good as its media retention plate. Lightweight and easy to install, the SAVAGE PLATE® is a high-density polyethylene porous plate.
