Rubber Flasks Extenders for Solid Wall Flasks - 2-1/2"

sku: 2600401

 2-1/2” in height, this one fits a 2-1/2" diameter standard casting flask. Used to prevent overflow when vacuuming solid wall flasks. Simply slide over the flask to allow the investment to expand during the vacuum process.

Rubber Flasks Extenders for Solid Wall Flasks - 3"

sku: 2600451

 2-1/2” in height, this one fits a 3" diameter standard casting flask. Used to prevent overflow when vacuuming solid wall flasks. Simply slide over the flask to allow the investment to expand during the vacuum process.

Rubber Flasks Extenders for Solid Wall Flasks - 3-1/2"

sku: 2600501

 2-1/2” in height, this one fits a 3-1/2" diameter standard casting flask. Used to prevent overflow when vacuuming solid wall flasks. Simply slide over the flask to allow the investment to expand during the vacuum process.

Rubber Flasks Extenders for Solid Wall Flasks - 4"

sku: 2600551

 2-1/2” in height, this one fits a 4" diameter standard casting flask. Used to prevent overflow when vacuuming solid wall flasks. Simply slide over the flask to allow the investment to expand during the vacuum process.