This is a replacement seal for the guillemin couplings with a 68 mm size. It is made of NBR (nitrile rubber). Suitable for temperatures between -10 to 80 °C (14 to 176 °F).
Pros:
- NBR can be used with water, air, oil, solvents and alcohol
Specifications
Material : Rubber
Inner diameter (mm) : 68
Seal features : Guillemin couplings
Max temperature (°C) : 80
Material quality : NBR (nitrile rubber)
Min temperature (°C) : -10
![NBR Seal 68 mm for Guillemin Coupling [10 Pieces]](https://www.coolgrittools.com/wp-content/uploads/2026/06/f24qp_.ea8f098f_203d7c5a-38e1-47e5-b30c-a6219c8e52d5.webp)




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