De Nora Tetra - Portable Water Filter

• Efficient media cleaning at reduced operating costs - excellent distribution of backwash air/water
• Reduced installation costs – wide profile design requires fewer laterals than most DPL designs, thus fewer joints, grout, and installation time
• Lower cost of filter box - low height profile of LP Block allows for reduction of filter box depth
• Easy maintenance, long life and simple installation
• Simplifies retrofit of existing shallow filters, accommodates various air and water backwash schemes, and allows for greater media depth resulting in better filtration performance
• Anchor-Rite and GroutGrip features minimize buoyancy and offer increased adhesion to filter floor
• Media retention plates simplify media replacement, allow for greater media depth, and prevent media from entering underdrain.

In gravity filters, the underdrain is one of the most important components contributing to overall system performance and operation — whether a new filter design or retrofitting of an existing filter. De Nora Water Technologies offer TETRA LP Blocks dual parallel lateral underdrain and the TETRA U Blocks underdrain for drinking water and desalination pre-treatment applications.