Devilbiss 130523 Camair 2 Stage Air Filter and Regulator System - Air Filtration/Regulation System - Compact and effective perfect for cramped shop spaces. Removes dirt, water, and oil from air line to 0.01 microns-assures superior finishes. Quick change bowls and air inlet valve accommodate rapid, trouble-free maintenance without shutting off main shop air.1/2" NPT outlets with 1/4 air valve outlet• Replacement filters: DEV-130517 & DEV-130518