No this is clay to DI.
This coupling fits 4" Cast Iron or PVC pipe on one side to 2" Cast Iron or PVC pipe on the other end.
The clay side measures 5.28".
1.88" is the ID of the 1-1/2" side.
This coupling is made to fit clay to plastic. You would need the cast iron to PVC series which is a 1056. Contact Fernco Customer Service with your size pipes for a specific part # for this application. This is the intended use of the coupling.
Overall length of the coupling is 3.90".
This model connects two 1'' plastic pipes or 1 1/4'' copper pipes.
why not? I use the various sizes to connect anything from PVC pipes to flexible hoses rubber and plastic. I use 1.5" and 2" fernco couplers to connect plumbing lines. I glue everything else with PVC cement including the P and S traps knowing they will never leak. when I need to disconnect the under kitchen sink line for cleaning the trap I simply undo the fernco coupler. I have never known these couplers to leak when installed properly and tightened
The 6" end is made for 6" clay so the inside diameter is 7.30". This will not torque down onto 6.25" OD.
No, this is only for drain/waste lines. It can not be used for pressured lines.