Selkirk Model RV Type B Gas Vent 4in. Type B Vent Collar

This 4 in. Type B Pipe Collar boasts a long list of convenience features. Including a durable galvanized-steel outer pipe, die-formed ends and convenient lock tabs. This round pipe collar is designed for use on approved gas appliances in residential, light-commercial and industrial applications.

• Galvanized trim for clean finish for wall and ceiling penetration
• Available for 3 in. - 7 in. diameters
• Seals and closes air gaps around the pipe