
HSTS Series - Hollow Stoppers
**Product Description:** Our Hollow Silicone Tapered Stoppers (HSTS) are typically substituted for the same size solid tapered stopper due to their lower cost. With many sizes available, holes from 0.935” to 4.710” in diameter can easily be plugged. Our high temperature silicone is specially formulated to ensure reusability and reliability during masking.