This site contains affiliate links for which we may be compensated.
Slide-co PL 14155 Aluminum Window Frame$12.15
Prime-line 3/8 in aluminum window frame has a frame height of 25/32 in and top opening width of 0.180 in. The channel for the glass accepts single strength (1/16 in thick) or double strength (1/8 in) glass or Plexiglas. Several sizes of vinyl glazing channel are available.
Use the appropriate glazing vinyl to insure proper fit. The frame can be miter (angle) cut or square cut.