Outdoor Boiler Tube Cleaning Brush 1.75"
This brush meets the specifications for use with any outdoor boilers with tubes that measure 1.75" in diameter. This includes model GX15 and GX30.
For cleaning instructions of the GX series furnaces, see the video at this link:
Please note: Do not turn this brush "counter-clockwise". Doing so may cause some of the brush bristles to fall out.