Functionality and durability is definitely what this replacement Comfort Bilt patio screen door (which is available to buy at Lowes among other stores) would provide. At Lowes you can find these Comfort Bilt replacement screen doors in 32 inch as well as 36 inch sizes, which are the most common sizes, however you should definitely measure your door opening carefully before you actually make the purchase.
Over at Lowes there is a pretty wide selection of Comfort Bilt Key West screen doors as well as Comfort Bilt Palm Beach screen doors. These units are available in either white or brown, so you should pick the model that would work best with your overall design and decor, both interior as well as exterior.
If your current door has broken, then picking up one of these Comfort Bilt patio screen door replacements would be an easy and quick fix. After all, these units are pretty affordable and they come with nice feature and a durable construction.
Comfort Bilt Key West 32" White Mid View Screen Door
"Maintenance free surface. Two half screens allow maximum ventilation. Adjustable bottom expander seals out bugs. Black push button handle with inside night lock"
Comfort Bilt Palm Beach 32" Brown Mid View Self Storing Screen Door
"1 in. thick Fluted Aluminum frame screen door. Maintenance free surface. Two half screens with mesh grid for added strength. Adjustable bottom expander seals out bugs. Black push button handle with inside night lock. REVERSA-HINGE for right or left mounts"
These doors are from lowes.com