Pella doors have been equipped with three different brands of locks over the years; the three brands differ in cylinder-handle spacing (PZ)
1) Cifial Original Pella: 3-11/32 inch 85mm PZ ( Single Point Lock )
1) G-U: 3-5/8 inch 92mm PZ
2) Amesbury: 3-5/8 inch 92mm PZ
3) W&F: 6-inch 152mm PZ
Also note: Pella doors equipped with W&F locks had two different sized bores: 1-11/16 inch & 2-1/8 inch. We currently have no handlesets available that are wide enough to cover the larger bore.
To make the best of your purchase, cross-reference replacement handlesets with your Pella door and original handleset.