Watertight fittings are available in most standard configurations. There are many variations to fittings that can be made, therefore if you do not see what you need please give us a call. Watertight fitting joints are specified to meet a laboratory pressure test of 10.8 psi per ASTM D-3212. These joints are designed to prevent infiltration of soil and exfiltration of storm water. The joints have a bell-bell design and incorporate an ASTM F-477 elastomeric rubber gasket.