Ross Ventilation Pole 125/135 For ventilating the crawl space of a house, thus preventing moisture damage and radon problems in ground floorsCan also be used as an inlet air pipeAlso prevents snow, trash and small animals from entering the space in the base floor
Underlay Ring For fastening underlay material to roof battens, raising the underlay and ensuring that water is kept out of roof structures and insulation materialAlso included in all VILPE® pass-through setsFor a more advanced solution, try the VILPE® Underlay 2K Seal instead