A-LOK Products Inc.

A-LOK Products, Inc. has manufactured pipe-to-manhole sealing systems from its Tullytown, Pennsylvania headquarters since 1971, emerging alongside the Clean Water Act to address watertightness in wastewater and stormwater construction. ISO 9001:2015 certified by DEKRA, the company serves precast concrete manufacturers, municipal engineers, utility contractors, and on-site wastewater installers. Its compression connector line includes the A-LOK Premium (12- to 102-inch OD, featuring a viscoelastic core that deforms with the pipe for guaranteed watertight sealing), X-CEL (4.25- to 102-inch OD, with a patented hydrostatic-pressure-energized water pocket seal), A-LOK STM (8- to 102-inch OD economical stormwater connector accommodating both round and elliptical pipe), and Inserta-LOK (4- to 13-inch OD with a tapered profile for cored or cast openings). Boot connectors include Z-LOK cast-in boots with stainless steel clamps (up to 25 degrees deflection), G3 Boot, and QUIK-LOK. The company also produces Dura-Plate 100 manhole liners for hydrogen-sulfide corrosion resistance, Water-LOK grade ring liner systems, concrete reinforcement hardware (Hoop Supports, Fast-V-LOK, Wheel-LOK, Pyramid-LOK), Key-LOK certified lifting systems, invert channeling equipment, mandrels, hole formers, step inserts, and sealants. All products meet or exceed ASTM C-923, C-478, F-2510, C-1644, and C-1244 standards.