Pella storm door




Hello,
I do not believe your handle set is still available. Manufactures are eliminating the "knob" type handles for the more ADA approved "lever" type. My choices would be the 40-058 lever and don't use the exterior key cylinder. Just use the inside lock part where your existing lock is. I believe you could also use the 40-130 lever handle/deadbolt. Not sure, but if you just want to replace your inside handle take a look at the 40-150 which can take two different size spindles.
Take a look at these suggested locks along with the related videos and information to see how the dimensions compare to your original. Let us know if you have any additional questions!