Reliable G4 White Cover Plate Assembly 135 Degree

Reliable MODEL G4 flat cover plate / cap for quick response fire sprinkler model G4 concealed. Need to replace a Reliable G4 cover plate? You've found the right spot! Like all cover plates, when this model G4 cover reaches a specified temperature the solder holding the decorative exterior of the cover plate to its frame melts and the two separate. Recommended cover plate temperature is at a minimum 20°F cooler than the sprinkler head itself ensuring adequate separation time prior to sprinkler activation.