Set of 5 Rubber Sprue Bases - "C" Style

Leak-proof, and will fit both regular and perforated flasks. Great for Centrifugal casting and vacuum lost wax casting processes; made from natural rubber materials, and holds 5/16" to 3/8" trees tightly into place.

Additional Details & Specifications:

• Sizes includes 1 of each of the follow sizes (in diameters): 2", 2-1/2", 3", 3-1/2", and 4".

• Made from natural rubber materials.

• Holds 5/16" to 3/8" trees tightly into place.