A-Lok - Model STM - Flexible Pipe to Manhole Connector - Brochure

The A-LOK STM is a flexible pipe-to-manhole connector designed for the prevention of soil and water infiltration into stormwater sewer systems. This minimizes the chance of pothole formation and sediment build-up in the storm system, saving states and municipalities money over the life of the structure. It can be used with round, elliptical and arch shaped pipes for curved and flat wall structures. The A-LOK STM was designed to meet or exceed the ASTM C-1478 standards.