Concrete distribution boxes are available for a wide array of applications, for example, detector check valves, fire lines, pressure reducing applications, large meter housing, flow control, and air/vacuum release. Distribution boxes can be customized to the needs for each. Polylok, Inc. is an international supplier for the precast concrete and onsite wastewater industries, producing high-grade septic tank Solution and product. Information about each size follows: View Distribution Box Sizes We also carry H-20. Jensen Infrastructure designs, engineers and manufactures a range of precast concrete products, meeting the needs of communities, businesses & government agencies. Patented weir opening maintains equal flow even in unlevel D-Boxes that continue to move their entire lives. Simple to install, just push into any 4" pipe, SCH.
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