"I purchased a PetSafe medium 2-piece replacement flap because the old one had become bowed and did not seal well. The replacement was worse than the 5-year-old one it was to replace. There is huge gap along the center area between the inner & outer door because the inner flap is bowed and the magnets are so weak even the slightest breeze forces it open. It won't even keep the mosquitoes out, not to mention the wind. Certainly not worth 30 bucks."
