Larger Internal Diameter: 28mm
Larger Outside Diameter: 37mm
Smaller Internal Diameter: 25.4mm
Smaller Outside Diameter: 34.4mm
Overall Length: 127mm
Recommended Hose Clamp (Guide Only):
Worm Drive Clamp: AF23-2144
Constant Tension Clamp: AF28-2639/AF28-2639BLK