Product Details:

• Universal Glass Sash for 1/4" or 3/8" (6 or 10 mm) Thick Glass
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  CRL Mill Glass Sash is a universal sash that is designed to work with either 1/4 or 3/8 inch (6 or 10 millimeter) thick glass. For 1/4 inch (6 millimeter) glass use Cat. No. M121V14 Glazing Vinyl, and when using 3/8 inch (10 millimeter) glass use Cat. No. M121V38 Glazing Vinyl.
  
  
  

• Length: 21 ft 2 in (6.45 m)
• Color: Mill