SEAL VACUUM CONNECTIONS: Provide a quick and sure way to seal vacuum connections.
TEST EMISSION CONTROL SYSTEMS: Use these vacuum caps to test emission control systems, diaphragms, and more.
This vacuum cap kit provides a quick and sure way to seal vacuum connections. Use them on carburetors, manifolds, etc. These vacuum caps are constructed from durable, heat-resistant Nitrile rubber. Includes: 20 ea. 3/16, 5/32, & 7/32", 10 ea. 1/4", 5 ea. 5/16 & 3/8".