The Flex Vent Adapter Collars (part 50-3789) are the genuine Enviro option built for the C Series, G42 and G50 fireplaces, among the models listed below. This set of two 5 in. x 8 in. collars adapts co-axial flex vent to the fireplace for the run, then adapts back to rigid venting at the wall penetration and termination.

What it adds

The collars let an installer use co-axial flex for the vent run instead of running rigid pipe the full distance, while still returning to rigid pipe where Enviro's manuals require it for the exterior wall penetration and termination. Flex itself is not included; the kit covers only the adapter collars.

Fit

• On the C44 and C60 fireplaces, the flue collar fits inside a standard 5 in. x 8 in. vent and must be correctly interlocked or fastened with three screws directly to the vent collar.
• For the Q2, Q3, G39 and RZ41, choose the 4 in. x 7 in. version, part 50-3788.

Specifications

• Collar size: 5 in. x 8 in.
• Quantity: set of two collars

Installation

Let the appliance cool completely before working on the vent connections.

Not sure it fits your unit? Contact us with your model number and we'll confirm before you order.