Light Blue "Quick On" CAdapter For use on the new OBDII GM quick-on fuel caps. Check adapter application chart for specific makes and models. Model # 12421 Features: Quick On CAdapter For use on the new OBDII GM quick-on fuel caps Works with all Stant Fuel CTesters Check adapter application chart for specific makes and models Professional quality Item Dimensions: 3. 5" L x 3" W x 3. 5" H.
