Polylok, Inc. is an international supplier of plastic injection molded products for the precast concrete and onsite wastewater industries. They design, manufacture, and ship all of their products from their Wallingford, Connecticut headquarters.

12"x12" Square D-Box

12" Distribution Box

20" Distribution Box
Flow Controller / Divider

Roto-Flow - Speed Leveler

D-Box Seal

12" Distribution Box Risers
20" Distribution Box Riser