No Clog Vent

Dirt and Debris Resistant

360 Degree Adjustable Collar Ring for Installation Flexibility

Stainless Steel Concentrator Which Eliminates Gurgling Noise

Bronze Body for Rigid Construction

Guarantees Fast Start up with Automatic Venting

Micro-Bubble Concentrator has Three Times the Impact Area of Other Products

Helps Prevent Corrosion of System Components

Improves System Efficiency

Made in USA

Directional Flow Arrow for Correct Installation

Honeywell AP400 Series Air Purgers Provide Air and Water Separation in Hydronic Heating Systems, Improving Efficiency and Reducing Noise

Solidly Constructed of Cast Iron

The Air Purgers Feature Tappings for Expansion Tank and Auto Air Vent Mounting

Directional Flow Arrow for Correct Installation

Directional Flow Arrow for Correct Installation

Automatic Air Vent Purges Air from High Pressure Mains and Equipment in Hot or Cold Closed Water System

Includes Removable Float/Valve Assembly for Easy Servicing

Not for use in Steam System

Body, Cover and Float Assembly Made of Thermoplastics

Internal Parts Made of Corrosion Resistant and Chemical Resistant Materials for Use with Water System Containing Light Concentrations of Propylene Glycol, Mineral Oils or Petroleum-Based Oils

Oil Resistant Seal

NBR Seat Disc and O-Ring