System Noise SuppressorThe system noise suppressor is designed to tackle excessive exhaust noise in radon mitigation systems, vapor intrusion systems, or any type of ventilation system. All mitigators will agree: one of the top complaints they receive from customers is system noise. The SNS X solves that problem with NO penalty to system performance and absolutely NO back pressure. The SNS X is designed for both Schedule 20 and Schedule 40 PVC. Step down bushings must be