Sullivan Head Lock Professional. The Head Lock Glow Plug Connectors feature the original patented spring loaded “Twist-Lock” design and heavy duty power cords. In mid-2000 they were upgraded with stronger springs. To attach to a glow plug you simply push down and turn. The Head Lock can be powered by any 1.2V to 1.5V battery or power panel.
Stainless Steel Body and 48″ Power Cord. Sullivan Products enjoy a reputation of producing high quality products and providing responsive customer service.