Seeking Top Sash Guide

Question

Please help me identify this top sash guide. It's measurements seem a little off your dimensions for comparable looking guides, like 18-176. For example, the top piece seems to be 1 inch wide, however it is worn a bit. The length seems to be 9/16. The sideview seems to be correct -5/8" inch wide at the top, 9/16
From side to side under the top flanges.

Bob · Accepted Answer

Thanks for posting. After talking it over with my colleague, we think you should instead take a look at our 18-015. Its shape is a bit closer to your old top sash guide, though it lacks the bottom slit. Take a look, compare the dimensions, and see if you think you could adapt this to work for you.