Purpose and key benefit: A 4in1 quickdisconnect scissor tool designed to release coupler fittings on car fuel heater and A/C lines quickly and safely. It lets you disconnect lines without cutting, deforming, or damaging the line or fuel filter, reducing the risk of leaks and costly replacements. What it does: Releases the locking mechanism on quickconnect couplings so you can remove fuel or air conditioning lines cleanly and reliably. The scissorstyle action gives controlled pressure for secure release. Compatibility: Works with all four standard size ranges—3/4', 5/8', 1/2', and 3/8' couplings—on fuel and A/C lines, providing broad compatibility across general vehicle models and tasks. Construction and size: Made of metal with a chrome finish for corrosion resistance and long life. The tool measures approximately 12.6 cm (5.1') in length, giving a compact profile that fits in tool bags and tight engine bays. Ease of use: The scissorstyle mechanism enables onehanded operation, making it easier to work in confined spaces under the hood and to control the release without twisting or excessive force. Practical applications Replacing a fuel filter: Quickly release the fuel line couplers to remove the old filter without risking damage to the filter housing or line fittings. A/C line service: Disconnect evaporator or condenser service lines during A/C diagnostics and repairs without deforming the quickconnect fittings. Roadside or tightspace repairs: Use the compact, onehanded design to access couplings deep in the engine bay or underbody where larger tools won't fit. Why technicians and DIYers need it Prevents line and filter damage that can cause leaks or extra replacement parts. Speeds up routine maintenance and repairs by making coupler release simple and repeatable. Durable chromeplated metal construction stands up to repeated use in professional and home garages. What's included and fit: A single 4in1 scissorstyle disconnect tool sized to work on 3/4', 5/8', 1/2', and 3/8' fuel and A/C couplings; approximately 12.6 cm (5.1') long; metal with chrome finish.