Description
Obround pressure / vacuum relief thief hatch. Dead weight standard relief settings are 2 oz pressure and .4 oz vacuum, with other settings available. Standard gasket material is Buna-N with other materials available.
Bolt Pattern:
8×18 – 10 3/8″ x 20 3/8″
8×22 – 10 3/8″ x 24 3/8″