Check the listing for details. Little Firefighter Automatic Shut-off Valve - AGV125 1-1/4" Horizontal. Condition: New. Listed at 129.00 USD. Size 1-1/4" - 5 Psi. - HorizontalThe Little Firefighter Seismic Gas Shut-Off Valves offer peace of mind and an added layer of protection for your home and family. Our Seismic Gas Shut off valves are manufactured to exacting standards and made in America.This easy-to-install device helps prevent gas leaks and fires by automatically shutting off the gas supply to a property in the event of an earthquake or other seismic activity from a significant earthquake. The valve works by detecting significant shaking motion caused by seismic activity and immediately shutting off the gas flow to the structure and all connected appliances and equipment, including stoves, water heaters, and furnaces.By investing in a Little Firefighter Gas Safety Valve, you’re taking an important step towards protecting your property and loved ones from the potential dangers of seismic related gas leaks and fires, and ensuring that your home or business is safe and secure for years to come.