Snack Attack Vending LLC is offering a MARS Bill Validator Mounting Bezel for Coke front - Grey soda machines including models 276, 276E, 368, 440, 501E. This is a great way to boost sales upgrading to a bill validator feature. Mars VN2501 & VN2502 validators will mount to this bezel. Keep in mind this is a 1/2 knock out bezel. Make sure your bill validator nose will fit. Some bill validators need a full knock out to mount. The bezel knock out measures 3 3/16" w x 2" h. This bezel is brand new.