Installation Accessories and Tools Hole Saw Arbor Hand Loop Saw, 36" PVC Pipe Cutter Auger, Dirt Hole Drill Dampers - PVC Knife Gate Valves Hilti Firestops Nelson Firestops Kozy Kollars Roof Flashing Cosmetic Flanges EZ Snap Clamps EZ Condensate Trap System Noise Suppressors Caulk Savers Line Cord Radon Mitigator/Inspector Kit General Contractor Kit