![1051-44SR - Fernco 1051-44SR - 4" x 4" Shear Ring Coupling (Asbestos or Ductile Iron to Cast Iron or PVC) 1051-44SR - Fernco 1051-44SR - 4" x 4" Shear Ring Coupling (Asbestos or Ductile Iron to Cast Iron or PVC)](https://www.supplyhouse.com/images/products/zoom/1051-44sr-3.jpg)
1051-44SR - Fernco 1051-44SR - 4" x 4" Shear Ring Coupling (Asbestos or Ductile Iron to Cast Iron or PVC)
![Amazon.com : 52mm-52mm Male-Male Thread M-M Macro Photography Lens Coupling Ring for Mounting Two (2) Lenses Face to Face : On Camera Macro And Ringlight Flashes : Electronics Amazon.com : 52mm-52mm Male-Male Thread M-M Macro Photography Lens Coupling Ring for Mounting Two (2) Lenses Face to Face : On Camera Macro And Ringlight Flashes : Electronics](https://m.media-amazon.com/images/I/31yXTyd69dL._AC_UF894,1000_QL80_.jpg)
Amazon.com : 52mm-52mm Male-Male Thread M-M Macro Photography Lens Coupling Ring for Mounting Two (2) Lenses Face to Face : On Camera Macro And Ringlight Flashes : Electronics
![Replacement Square O-Ring 1/4" Industrial Quick Connect Coupling American Made (10pc): Amazon.com: Tools & Home Improvement Replacement Square O-Ring 1/4" Industrial Quick Connect Coupling American Made (10pc): Amazon.com: Tools & Home Improvement](https://m.media-amazon.com/images/I/71plTwkSIIL.jpg)