$10.35
Kegler Bearings sliding window roller, with stainless steel house, believed to suits Airlite
$9.24
Narrow window carriage with plastic roller and brass pin suits Airlite sliding windows.
Price range: $20.77 through $23.60
Whitco 16mm winder mounting bracket suits Airlite window sill section. Used with 5-307 & 5-308 *black pictured*
This product has multiple variants. The options may be chosen on the product page