MULTIBLOCK® Underdrains provide a high quality, low cost, engineered product that is economical and versatile. MULTIBLOCK Underdrains can be fitted with the unique Laser Shield™ media retaining system that eliminates the need for support gravel. Combined air and water backwash is possible using this system.
MULTIBLOCK underdrains deliver to you…
The versatile MULTIBLOCK Underdrain has been installed in concrete and steel gravity filters for a number of applications. Packaged treatment units as well as large cluster filters have benefited from the design. It readily combines with the unique MULTIWASH® baffle to provide unlimited air-water backwashing. Your old clay tile underdrains are ideal candidates for replacement with MULTIBLOCK underdrains which are NSF Standard 61 approved.
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