Transparent flap, silent action
With 360° circumferential seal (TPR)
With turn-lock fastener
Incl. 2 tunnel elements
Can be extended with more tunnel elements
Depth 20–52 mm
Total measurements 20 × 22 cm
Cut out size 15.9 × 16.8 cm
Flap size 14 × 15.5 cm
3 years guarantee
Plastic