Machined from aluminum or brass hex rod. Used to couple two rods together or change thread size of an existing air terminal base. All Couplings on this page are UL Listed.
ALUMINUM
A1252F2F1/2″ female to 1/2″ female
A1252F2M1/2″ female to 1/2″ male
A1262F5F1/2″ female to 5/8″ female
A1262F5F1/2″ female to 5/8″ male
A1262M5F1/2″ male to 5/8″ female
A1275F5F5/8″ female to 5/8″ female
A1275F5M5/8″ female to 5/8″ male
A1252F2M1/2″ female to 1/2″ male
A1262F5F1/2″ female to 5/8″ female
A1262F5F1/2″ female to 5/8″ male
A1262M5F1/2″ male to 5/8″ female
A1275F5F5/8″ female to 5/8″ female
A1275F5M5/8″ female to 5/8″ male
BRASS
C1233F3F3/8″ female to 3/8″ female
C1233F3M3/8″ female to 3/8″ male
C1243F2F3/8″ female to 1/2″ female
C1243F2M3/8″ female to 1/2″ male
C1243M2F3/8″ male to 1/2″ female
C1252F2F1/2″ female to 1/2″ female
C1252F2F1/2″ female to 1/2″ male
C1262F5F1/2″ female to 5/8″ female
C1262F5F1/2″ female to 5/8″ male
C1262M5F1/2″ male to 5/8″ female
C1275F5F5/8″ female to 5/8″ female
C1275F5M5/8″ female to 5/8″ male
C1233F3M3/8″ female to 3/8″ male
C1243F2F3/8″ female to 1/2″ female
C1243F2M3/8″ female to 1/2″ male
C1243M2F3/8″ male to 1/2″ female
C1252F2F1/2″ female to 1/2″ female
C1252F2F1/2″ female to 1/2″ male
C1262F5F1/2″ female to 5/8″ female
C1262F5F1/2″ female to 5/8″ male
C1262M5F1/2″ male to 5/8″ female
C1275F5F5/8″ female to 5/8″ female
C1275F5M5/8″ female to 5/8″ male
Standard coupling length is 1 1/4″ long; other lengths are available upon request.
Couplings was last modified: January 9th, 2026 by