Provides an effective secondary seal on the A6 Pressure Relief Valve. This is a requirement for some life raft approvals. This cap can also be useful in preventing air loss through the pressure relief valve when an inflatable chamber is experiencing heavy impacts in rough seas which can cause pressure spikes.
Highly resistant to Ozone, oil and other contaminants.
Please note that with the plug in place the valve is no longer able to function as a pressure relief valve.