“Older Style” Pop-Up valve for 1.5 cubic foot through 6 Cubic Foot machines with a 4 inch opening.
The valve stem is ½” and will ride along the inside of the 1” pipe inside the blast pot.
This pop-up valve can be found on the following model machines manufactured before June of 1983:
Model 1642, Model 1648, Model 2443, & Model 2452
Clemco Part # 02321