Honeywell 1/8" NPT Goldtop Universal Air Vent Connector Heating/Cooling Systems

True Working Pressure to 150 psi, 3-4 Times The Venting Rate of Other Vents. Universal, One Fits-All Design. Brass Construction. Size: 1/8 in. Dimensions: 3-1/4 in. x 1 in.|GoldTop offers a convenient, one-fits-all concept, to stock one vent for all your venting needs, between 1 and 150 psi systems|The revolutionary patented fulcrum design offers a venting rate of 3-4 times that of other products|Residential or commercial heating and cooling systems|Male connection|Higher capacity|Four sizes available|Spring-loaded, float type air vent|Used in heating systems to vent air, which has accumulated due to the heating of cold water|Easy to install|Typical recommended locations are: on boiler top, on top of an air purger