LiftMaster Split Coupling (41B6299 / 41D8615)
Doorlec Coupling 1-3/4" x 5/8" bore 4 Pins
Manaras Steel Collar 0.375" ID
Micanan Collar 3/4" ID
Micanan Flex Coupling Lovejoy 3J x 3/4"
Micanan Flex Coupling Lovejoy 3J x 3/8"