SIGMA Polymer Enclosures:
Oval & Misc.

Straight wall oval boxes are designed per ASTM C 857-16. They serve as a high-quality replacement for old-school cast iron, metal, and corrugated can boxes. The material is rust resistant and is not susceptible to decay in hot soil conditions.

 SPE’s oil/water separators and skimmers are manufactured in the US and are available in sizes 4-48” for pipe outlets. 

 Our extensions add height to an existing meter box for access or provide a shallow enclosure for various applications. We offer a range of sizes and configurations to meet all specifications.