QUIC-RELEASE Horizontal Strapless Cylinder Bracket: Our popular Strapless "D" Cylinder Bracket optimized for horizontal mounting with virtually no rattling. In this horizontal configuration, the flip up plate is removed and the heavy-duty spring is shifted to the base of the bracket. The bottom of the cylinder is pressed against the spring in the base and the neck is pushed through the latches as before. The spring keeps the cylinder tight against the upper bracket while maintaining the full functionality of the quick and simple latching system.