Biasi Riva Plus PVC Venting Adapter - RI10999.0912
Product ID • RI1099909120
PVC Venting Adapter RI-109990912:
This adapter is required to allow the connection of PVC to the boiler. Adapter mounts to the concentric connection on the top of the boiler and splits to a seperate connection for intake and exhaust air. No matter what termination you intend to use this adapter kit is required.