- transparent flap, silent action
- with 360° circumferential seal (TPR)
- with turn-lock fastener
- incl. tunnel element
- can be extended with more tunnel elements
- depth 5–25 mm
- total measurements 24 × 28 cm
- cut out size 19.7 × 21.7 cm
- flap size 18 × 20 cm
- plastic
