Rubber Sleeves for Perforated Flasks

No more messy masking tape! These latex rubber sleeves are placed over the flask to contain the investment while pouring and also form a collar so that no spilling occurs. Dimensions listed are for the flask that each sleeve will fit. Sleeve must be removed prior to burnout.

Warning:DO NOT USE if you are NRL latex sensitive.

21.708

3 3/8"

4"

21.709

4"

5 3/4"

21.711

4"

7"

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