https://hogan-heller.federated....journals.com/replace
This double-flap, insulated cat flap provides excellent protection in all climates. It can be put in wood, uPVC and glass doors. It is crucial to have a door that can be sealed tightly, particularly during cold weather. It keeps warm air from being sucked away and cold air from entering, saving money on energy costs. Wind Resistance Covering your cat's flap for winter can help keep your home warmer by stopping cold air from entering and allowing warm air inside. The majority of the top opti