These are to fit Staywell Classic 4-way locking catflap, 919EF.
Each tunnel extension provides 18mm extra tunnel length so 2x18mm =36mm
Both extension pieces are new/unused. One is still in its packaging and one has been removed from its packaging which is when I realised it wasn’t what I wanted.
Tunnel extensions just clip together.
Fitting instructions are in the catflap manual booklet so not supplied with the extension pieces. so please refer to cat flap booklet or online.
Category: Pet Supplies:Cat Supplies:Doors and Flaps