Rubber Cone Tree (CT-Style) Sprue Base, 3-1/2" Diameter
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Rubber Cone Tree (CT-Style) Sprue Base, 3-1/2" Diameter
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" - 3/8" tree tightly into place.