Desiccant Breathers Z131 Thread Size 1/2 (F)NPT Dia Hex Flats (In.) - Height 2 Top Cap Dia (In.) 2 Base Square (In.) - Overall Length (In.) 2 Max Operating PSI - PSI - Max Operating Temp 200 F Filter 2 Micron Vacuum (In. Hg) - ABS Plastic Impact Modified Acrylic Protection Of Industrial Equipment By Prohibiting The Entry Of Moisture And Particulate