Classroom Intact mattress 4 inch rubber coupler war Eve Measurable
1056-44 - Fernco 1056-44 - 4" x 4" Flexible Coupling (Connects Cast Iron, PVC, Steel or Lead)
Amazon.com: 4 inch to 2-1/2 inch Reducer with 4 inch Flexible Cuff Rubber Coupler Fitting and Stainless Steel Hose Clamps for Dust Collection on Machinery and Workshop Vacuums : Tools & Home Improvement
1-1/4 Inch (in) x 1-1/2 Inch (in) Rubber Flexible Coupling | Halogen Supply
2 Inch Fernco 1056-22 Flexible Coupling
BN HEAVY DUTY 4" 110 MM RUBBER COUPLING REPAIR FLEXIBLE COUPLING 110 MM PVC | eBay