A fitting attaches to suction side of pump for air volume control use and to pressure side of pump for pressure switch use or the second fitting attaches to pump side of AV42, AV80 and AV120 air volume controls for air volume control use. For pressure switch installation, it attaches to pressure switch and pressure side of pump.
25 Whaley Avenue
P.O. Box 310
N0K 1M0 Canada
Boshart Industries LLC
3601 Woodpark Blvd. Charlotte, NC 2820 USA