This no-hub coupling is used to connect two 4" x 3" cast iron no-hub pipe or fittings together.
- For use with: 4" & 3" cast iron no-hub pipe
- Shield & clamp material: 310 Stainless Steel
- Screw material: 305 Stainless Steel
- Screw size: 5/16" HEX head
- Gasket material: Neoprene
- Max. torque: 60 inch/lbs
- Meets or Exceeds ASTM C564 and C1277
- UPC and IPC Approved.