Dental Equipment Ф36*ф20 Ring Sealing Ring Leak-ProofФ36*ф20 Ring: Sealing Ring For Dry Vacuum Systems, Ensures Leak-Proof Performance. $1.00 Request a Quote System Overview The Ф36*ф20 ring is a sealing ring designed to ensure leak-proof performance in dry vacuum systems. It helps to maintain system integrity by preventing leaks. Specifications Part Number: 8400962 Size: Ф36*ф20 Packaging: Package of 10