Blue Silicone O-Ring Replacement Pack for 678-114 (50 rings) Blue Silicone O-Ring Replacement Pack for 678-114 (50 rings) 678-114R50 Medical grade silicone rings cushion and hold cut wire when used with 678-114 distal end cutter. Dental Unit ManufacturerHuFriedyGroup Where to Buy x Category - Any - Dealer Partners Sales Representative Strategic Markets Schools Representative Accutronâ„¢ Equipment Sales Zip Code Find Representative Reset No results found. Please try a different search or explore: Sales Representatives | Dealer Partners | Strategic Markets | Schools | Accutron