Slide the locks on the bottom of the flap to set the door to one of the following. Flap is locked from both sides. Cat can go out but can not get back in (for preventing other cats also entering). Cat can only enter from the outside but not go out again.
eBay
Lockable Plastic Pet Dog Cat Kitty Door for Screen Window Security Flap Gates Pet Tunnel Dog Fence Free Access Door for Home
Aliexpress UK
Easy to install, simple and generous. Features: Weatherproof, 4 Ways In and Out,Easy Installation. The quality is very good, using ABS material (a very good kind of plastic). Four major functions Main Material: ABS+ plastic.
eBay
Lockable Home Dog Screen Door Mosquito Proof Pet Door for Cats Plastic Screen Window Security Flap Gate for Dog Fences
Aliexpress UK
Locking panel included,can be used when you don't need the doggie door in use. You can insert the locking panel on the interior door when you don't want it to be used. 1 2-way locking pet door with locking panel.
eBay
Strong Lockable Dog Door with Privacy Protection Flap Gate Pet Dog Door For Big Small Dogs Pet Safety Doors Easy to Install
Aliexpress UK
Or, you can keep it locked and go out with the peace of mind of knowing where they are. Unsure of what pet door you need?. Find your perfect door with our pet door guide. You can also find our list of approved pet door installers to help you fit your cat flap.
eBay
Strong Lockable Dog Door with Privacy Protection Flap Gate Pet Dog Door For Big Small Dogs Pet Safety Doors Easy to Install
Aliexpress UK
eBay
Indoor White Portable Cat Gates No Flap Interior Cat Door Controllable Sturdy Barrier Free Dog Kitten Gates Safe Pet Supplies
Aliexpress UK
Slide the locks on the bottom of the flap to set the door to one of the following. Flap is locked from both sides. Cat can go out but can not get back in (for preventing other cats also entering). Cat can only enter from the outside but not go out again.
eBay
Plastic Pet Lockable Screen Door Magnetic Flap Weatherproof Dog Flap Door Ventilation Automatic Lock Magnetic Screen Door
Aliexpress UK
Staywell - Pet dog door / cat flap. Magnetic, plastic cover, security bar. The door is suitable for solid core, hollow core doors and walls. The flap is magnetic to ensure that it self locks after it has been used.
eBay
Cat Door Dog Hole Access Direction Controllable Toy For Pet Training Dog Cats Kitten ABS Plastic Small Pet Gate Door Kit Cat Dog
Aliexpress UK
eBay
Cat and dog pet door cat door dog hole indoor and outdoor easy installation free access screen window security door dog fence
Aliexpress UK