Abstract: A device for coupling adjacent ends of tubular members such as flexible tubular members comprising an elongated open ended tube member having an outside diameter that is approximately the same as the inside diameter of the tubular members to be coupled, a slit formed extending the length of the tube member forming adjacent slit edge surfaces oriented at an angle relative to the radius to the tube member thereat, a pair of aligned strap-like members having opposite ends connected respectively to the tube member on opposite sides of the slit and adjacent ends, cooperatively engagable threaded members connecting the adjacent ends of the strap-like members and adjustable in one direction to move the slit edge surfaces circumferentially relative to each other in one direction and in an opposite direction to move the slit edge surfaces circumferentially in an opposite direction relative to each other, and another threaded member operatively connected to one of the strap-like members on one side of the slit and adju