Tunnel Extension - Electronic Pet Door magento_productid_2982 mount the included security bar

mount the included security bar between your door frame and the interior sliding panel of your glass door

Designed to support secure installation in metal doors

this unscented crystal cat litter is free from any perfumes or harsh dyes

Includes two pre-portioned bags

Tunnel Extension - Electronic Pet Door magento_productid_2982 mount the included security barInstall your Electronic Pet Door in thicker walls with a Wall Extension Tunnel. The tunnel must be used with a Wall Conversion Kit (available separately). Each extension adds 2 3 4 inches to your tunnel. PetSafe brand is here to help you and your pet live happy together. Formerly known as the PetSafe Electronic SmartDoor Large Wall Extension Tunnel. Features Compatible with Large Electronic Pet Door