4.5" Silicone Green Nested Stopper

Green Silicone Nester Stopper has a 4-1/2" Outer Diameter. Stopper fits any hole from 13mm to 4.5". Can be used with blowhose or just as a closure. This stopper is made of silicone for high heat protection! The serviceable temperature range is from -40F to about 700F Even though silicone is rated higher we do not recommend using these in extreme enviornments.