The Tyco Blow-off Plugs (TFP890) are protective accessories designed to prevent clogging of open PROTECTOSPRAY nozzles and open sprinklers by insects or debris in both indoor and outdoor fire protection systems. These plugs help ensure reliable water discharge during fire events by maintaining nozzle clearances free from obstructions. Constructed with durable, temperature-rated EPDM material, the Blow-off Plugs are easy to install and maintain and are fully compliant with NFPA installation standards. They are an essential component for maintaining optimum performance of water spray fire protection systems.