American Valve RC75 3" x 3" Flexible Pvc Coupling For connecting drain, waste, and vent (dwv) pipe Made of flexible PVC and resistant to household chemicals Stainless steel bands for easy installation Perfect for cut-ins and repairs Certified by IAPMO (UPC) and CSA to US and Canadian Plumbing code standards For connecting drain, waste and vent (DWV) pipe Made of flexible PVC and resistant to household chemicals Stainless steel bands for easy installation Perfect for cut-ins and repairs Certified by IAPMO (UPC) and CSA to US and Canadian plumbing code standards