Coupler including clamp for connection to a corrugated tube

A coupler configured to be attached to an end of a corrugated tube having an inside diameter and a plurality of corrugations of alternating smaller outside diameter and larger outside diameter, comprising:

• a hollow shaft configured to be inserted within the corrugated tube;
• a flange surrounding at least a portion of the hollow shaft and having a width larger than the inside diameter of the corrugated tube;
• a first arm attached to the flange by a first flexible hinge and defining a first clamp configured to engage an outer surface of at least one of the plurality of corrugations when the first arm pivots about the first flexible hinge;
• and
• a second arm attached to the flange opposite the first arm by a second flexible hinge and defining a second clamp configured to engage the outer surface of at least one of the plurality of corrugations when the second arm pivots about the second flexible hinge;
• wherein the first clamp and the second clamp each have an edge configured to contact the corrugated tube defining an arc having a measurement within a range of 95°through 85°, the edges configured to engage at the outer surface of least one of the plurality of corrugations.