4 1/8-inch Sloped Sill Pan Extension Coupling in White

Use the SureSill 4-1/8 in. White Sloped Sill Pan Extension Coupling to supply your doors and windows with continuous support. The couplings also let you to expand or join existing sill pans. For use with SureSill 4-1/8 in. sloped sill pans Allows you to join and extend sloped sill pans Made from white PVC Includes 1 piece 4-1/8 in. Extension Couplings are available in bulk and individual packaging