Sea-Dog Gas Filled Lift Spring - 7-1/2" - 20#

The Sea-Dog Gas Filled Lift Spring - 7-1/2" - 20# is a precision-engineered component designed for boat hatches, engine covers, tool lockers, and similar deck hardware applications where controlled, assisted opening is required. This lift spring replaces manual effort with consistent gas-pressure assistance, making frequent access easier and reducing strain on hinges and mounting points. Whether you're maintaining a marine vessel, restoring an RV, or upgrading any equipment with lid-actuated hardware, this spring delivers dependable performance in corrosive salt-air and freshwater environments.

Built with gas-filled damping technology, the Sea-Dog lift spring uses pressurized nitrogen to generate a smooth, controlled lifting force rated at 20 pounds. The 7-1/2-inch length accommodates mid-range hatch and cover spans, while the sealed gas chamber eliminates the friction and wear associated with mechanical springs. The robust construction withstands repeated cycling without sagging or loss of lift capacity—a critical advantage over traditional coil springs that degrade over months of use in harsh marine environments. The corrosion-resistant design ensures longevity whether deployed in saltwater, brackish, or freshwater conditions.

Ideal for boat owners, RV enthusiasts, and equipment manufacturers, the Sea-Dog gas lift spring simplifies installation on any hatch or lid fitted with standard ball-stud mounting points. Before purchasing, verify that your existing hardware uses compatible ball-socket fittings and that the 7-1/2-inch length aligns with your span requirement—measuring center-to-center between mounting points ensures proper fit. At just 0.2 lbs and compact in profile, this spring integrates seamlessly into existing designs without requiring structural reinforcement or complex modifications.