black steel case,plastic window ,brass internal and connector

diameter:1.5',2.0',2.5',3.0'
connection:radial,bottom connection  axial,center back male connection
pressure range:0-50 psi
scale:psi,bar,mpa,kpa,kg/cm2
inlet thread:1/8' 1/4' 3/8' 1/2' BSP BSPT NPT