Dixon B73G-4MG-MB Norgren Series Manual Drain Filter/Regulator with Metal Bowl and Sight Glass, 3/8" Basic, 123 SCFM, 1/2" Port Size, 5-150 PSI: Compressed Air Combination Filters And Regulators: Amazon.com: Industrial & Scientific
Norgren - 3/4 NPT Standard 1 Pc Filter/Regulator FRL Unit with Sight Glass & Pressure Gauge - 00495887 - MSC Industrial Supply
Norgren B07-101-M3KG Compressed air filter/regulator 1/8" Compressed air Max. operating pressure 10 bar | Conrad.com