Caleffi 502343A Air Vent W/Check Valve 1/2" NPT

The Caleffi 502343A Air Vent with a Check Valve helps hydronic systems release trapped air automatically to stop air buildup that harms system performance and equipment. The 1/2" NPT connection makes installation fast and secure. The built-in check valve stops water from moving in reverse to keep the system working better and longer. This air vent helps HVAC systems work better by releasing trapped air from heating systems including radiators boilers and pumps. It saves energy while lowering noise and protecting system components from damage.