Active job

Dog door/installation

I would like a dog door installed in a French door. The glass panels are approximately 25cm x 25cm. The dog door needs to accommodate entry of two slightly different sized dogs, both mini-schnauzers but one is only around 7.5kg (small) while the other is around 11.5kg (between small- and medium-sized). I will need advice on options for the best sort of dog door for my situation.