This swivel hydraulic adaptor is for hoses with a hole dash size of 30. This straight-fitting adaptor can withstand a maximum pressure of 3000 psi at a temperature of 70 Degrees F. Hose fitting A is female and M42 x 2.0 millimetres in thread size, with a metric connection type. Hose fitting B is male and 1 5/8"-12 in thread size, with a JIC connector type. This adaptor is made from carbon steel with a zinc finish.