Our Little Firefighter seismic stabilizer brackets are designed to stabilize both horizontal and vertical installations and piping to prevent false actuations in incidents outside of your control, including but not limited to accidental bumps by pets or gardeners, nearby construction, heavy weather conditions. Our stabilizer brackets were the first pre-fabricated stabilizer approved by LA city and can be used with all shut-off valves. Only one bracket is required next to the valve (between the meter and the valve).