4" cpvc coupling sch80, Spears, fem x fem, cpvc pipe fittings, Light Gray | eBay
CPVC Coupling- ½”/ ¾” | R & G Supply, Inc.
Charlotte Pipe 1/2 In. Solvent Weldable CPVC Coupling with Stop (10-Pack) - Power Townsend Company
CTS CPVC Fittings 02100-1000 Coupling
4129-130 Spears Manufacturing 1" X 1/2" Reducing CPVC Coupling, Socket — American Copper & Brass
2 PIECES XFITTING 3/4" PEX X 3/4" CPVC COUPLING, TRANSITION COUPLING, BRASS PEX B CRIMP FITTINGS - BRASS - Amazon.com
Charlotte Pipe 1-in CPVC Coupling for Potable Water Distribution, Cream Color, 100 PSI, NSF Approved in the CPVC Pipe & Fittings department at Lowes.com