Note: LICENSED CONTRACTOR REQUIRED
This product must be installed by a qualified and licensed contractor using properly calibrated combustion test equipment. Failure to adhere to this requirement may result in significant property damage, serious personal injury, or death.
Beckett does not provide specific dimensions for their products because they are specific to the unit it is being installed it. If you have the model of the unit it is being installed in, we can pull up a parts list to confirm which coupling you require. The dimensions of this product is listed as: 3.38 depth x 1.13 diameter.