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Free Shipping on equipment orders $2,000 or more, shipped within the Continental United States. Excludes Cabinetry. Not valid with other discounts. Other restrictions may apply.
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Product Description:


  • 12 per package
  • Material: Nitrile (Buna N), 70 Duro
  • Size: .098" ID x .177" OD x .039" C/S
  • Included in Control Block Kit (Major) (RPI Part #ADK241) and Control Block Kit (Minor) (RPI Part #ADK257)

Fits: Stem (Drive Air) (RPI Part #ADS235) & Stem (Water Flow Adj.) (RPI Part #ADS233)

Model(s) This Part Fits: Handpiece Control Block 300 Series (38.1831.00), Handpiece Control Block 500 Series (38.1776.00), O-Rings, O-Ring Kits, Tools & Lubricant