Selkirk 3" to 6" Quick Grip Firestop Spacer (Round - Type B Gas Vent) Size:5-Inch A WiFi/Bluetooth compatible device can

A WiFi/Bluetooth compatible device can be purchased to gain this functionality

4" Outside Air Intake Pipe

Approximate Round Rock Dimensions: 3" L x 2

Click to see Remote Control and Switching Accessories SR-2R Wireless Hand-held Transmitter with simple ON/OFF function

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Selkirk 3" to 6" Quick Grip Firestop Spacer (Round - Type B Gas Vent) Size:5-Inch A WiFi/Bluetooth compatible device canSelkirk 3" to 6" Quick Grip Firestop Spacer (Model RV Type B Gas Vent) Used to support and protect combustible materials where the pipe passes through a ceiling. NOTE: UL listed model includes an attached spacer ring to ensure 1 clearance to combustibles. (RV) Round Type B Gas Vent Model RV Double Wall Gas Vent is the installer's choice for residential, industrial and light commercial applications. The aluminum liner heats up quickly to promote strong