The Dundas Jafine J Channel has been designed to provide a channel to which vents can be attached to for a more seamless appearance.  This product mounts onto the exterior wall prior to installation of siding and can be used with Dundas Jafine ProVent™ and ProGard™ caps and hoods.  The J Channels do not require use of caulking or screws and helps to provide a secure, easy to install flush mount for the exterior wall caps.