1. Adapter is specially designed fitting for repetitve harsh environments.
2. Ball check in the head prevents dirt and grit from getting into the fitting.
3. Heavier wall thickness for extra strength.
4. Fitting profile and dimensions are comply to SAE, DIN, BS, JIS, & IS standards.
Sizes: M12 x 1.5, M12 x 1.75, M16 x 1.5