Regulator, Precision, 22.0 SCFM Flow Capacity, 0.03 SCFM Bleed Rate, 1/4in NPT/BSPP-G Port, 300 Psig Max Supply, 0 to 15Psig Standard, Zinc Body, PBT Bonnet, Nitrile/Zinc Diaphragm, 0 to 65.5C, 5.19 LG x 2.99 WD x 2.59 HT in