Size: 1/6" Barb with 1/8" OD Tubing. Fits: 1/8" OD tubing. Included in Barb Kit (RPI Part #ADK080) and Control Block Kit (Major) (RPI Part #ADK241) Fits: Control Block 300 & 500 series, Handpiece Block to fit Century II System (OEM Part #38-0223-00), & Handpiece Block to fit Century Plus System
