The interference joint system consists of an integral bell and spigot. The spigot end has a buttress type, male thread for easy installation. The belled end contains the mating female threads. The tapered buttress threads make it easy to join while giving it a high pull out strength of 1000 lbs. The joint is concrete tight it a high pull out strength of 1000 lb. The joint is concrete tight but not water tight.
Unit of Measure