CR-SDD-24-1 contains double acting 1.5 inch Bore CR Stainless steel cylinder, Stud rise with dual rod. Extra details: 1.5 inch bore, dual acting, maximum air PSI Air is 150 PSI, 1/8 NPT ports, 1.7 power factor, stud type mount, dual rod with the diameter 0.4375, 30 to 160 degree Fahrenheit heat range and 1.0000 stroke