FDM replaced this coupler with a New and Improved FDM’s Dry Fit NO GLUE Coupler
The new coupler is STRONGER than ever and made out of HDPE, making it indestructible!
Go to FDM's New Coupler 👇
This fits existing storm drain sleeves. 4" x 6" PVC Hub x Hub Reducer Coupling is used to connect 6 in. sewer and drain pipe to 4 in. sewer and drain. Use it in conjunction with the French Drain Man 4" Corrugated Pipe Adapter to 4" PVC.