Staywell 940 Extend Tunnel Section (will Fit No.919 To Any Depth Wall.)

Staywell 940 Extend Tunnel Section (will Fit No.919 To Any Depth Wall.)

Staywell 940 Extend Tunnel Section (will Fit No.919 To Any Depth Wall.)
Tunnel Extension - White3/4" (18mm) Tunnel Extension suitable to extend to any depth of cavityclip on sections to allow 18 ,19 and 30 modles to be fitted to any depth of door or wall.