Patio Link Is Australia’s No.1 Pet Door Insert Manufacturer Trusted By Australians For Over 20 Years specialising in Premium Quality, Fully Lockable and Secure Pet Door Inserts for sliding doors and windows. Every Patiolink pet door Insert comes with a FREE Locking Bracket (to lock your glass sliding door), Lockable Flap Cover and all the weather seals to prevent any draft from coming inside. We offer HUGE RANGE of sizes and are the only company that specialise with custom height and colour pe