Tyco Concealed Horizontal Sidewall Sprinkler TY4332 (Series CHEC) 8.0K Extended Coverage Quick Response Light Hazard is decorative, 3 mm bulb type sprinklers featuring a unique cover plate designed to conceal the sprinkler. It is the best choice for architecturally sensitive areas such as dormitories, hotel rooms, reception areas, office buildings, banquet facilities, conference rooms, and hospitals.