
Slip the rubber extender over the flask prior to filling to enable you to fill casting flasks to the top with investment. Prevents spilling of investment during vacuuming.
| SKU | Flask Diameter | Price | Qty |
|---|---|---|---|
| 21.797 | 2-1/2" | $14.80 | |
| 21.798 | 3" | $12.75 | |
| 21.799 | 3-1/2" | $15.40 | |