The ring is solvent welded in place 0.5 inch below the rim of the case. Brass threaded inserts (8-32) are embedded in the ring for rigid attachment of an instrument panel. A foamed neoprene O-ring seals the panel to the ring.
Warning: SOME PRODUCTS WE SELL MAY CONTAIN ONE OR MORE CHEMICALS KNOWN TO THE STATE OF CALIFORNIA TO CAUSE CANCER, BIRTH DEFECTS OR REPRODUCTIVE HARM. For more information please visit https://oehha.ca.gov/proposition-65