Abstract: A plumbing trap is provided with a top access clean out for use with a P-trap. A horizontal extension conduit having an elbow having a threaded connection for attachment to a P-trap. The elbow forms an outside curvature at which is formed a clean out member providing bi-directional access within the plumbing passageway. The clean out member allows for access without having to remove the P-trap and while fluid flow is maintained within the passageway. The clean out member includes an outlet aligned along an axis that is positioned in a vertical plane at a 45° angle relative to the first axis and a 45° angle relative to the second axis and a 45° angle relative to horizontal plane relative to the first axis. A second clean out member may be positioned in a mirror image and at a 90° angle to the first clean out.