The 8" x 4" Reducing Bushing is a durable PVC fitting engineered to provide a smooth transition between 8” and 4” pipe sizes. With its solvent weld spigot x socket design, this reducing bushing fits securely into a 8" pipe bell or fitting on one end and receives 4" SDR35 pipe on the other. Compliant with ASTM D3034 standards, it is trusted in underground sewer and stormwater systems for maintaining flow efficiency and system integrity.