Brass Reducer Hex Head M12x1.5mm Female to 1/4" BSP Male Thread Reducing Bush adapter Fitting for Pressure gauge|reducing bush|bsp male threadmale thread - AliExpress
Adapters | Parker NA
Anderson Metals - 56120-0808 Brass Pipe Fitting, Adapter, 1/2" Male Pipe x 1/2" Female Pipe: Industrial Pipe Fittings: Amazon.com: Industrial & Scientific