| PartNumber
 | I.D. Opening | Cut OutSize
 | O.D.Size | Weight Lbs.
 | Shape | Opening
 | 
  
    | S414-SS | 4 1/2" x 14"(114mm x 356mm)
 | 6 1/8" x 15 5/8"(156mm x 397mm)
 | 7 1/4" x 16 1/2"(184mm x 419mm)
 | 5 | Oval |   | 
  
    | S616-SS | 4 1/2" x 14 5/8"(114mm x 371mm)
 | 6 1/4" x 16 1/4"(159mm x 413mm)
 | 7 1/4" x 17 1/8"(184mm x 435mm)
 | 4 | Elliptical | Opening | 
  
    | S616-FIXED-SS | 4 1/2" x 14 5/8"(114mm x 371mm)
 | 6 1/4" x 16 1/4"(159mm x 413mm)
 | 7 1/4" x 17 1/8"(184mm x 435mm)
 | 4 | Elliptical | Fixed | 
  
    | S617-SS | 4 1/2" x 14 5/8"(114mm x 371mm)
 | 6 1/4" x 16 1/4"(159mm x 413mm)
 | 7 1/4" x 17 1/8"(184mm x 435mm)
 | 4 | Elliptical | Opening | 
  
    | S718-SS | 5 1/2" x 16 1/4"(140mm x 413mm)
 | 7" x 17 3/4"(178mm x 451mm)
 | 7 7/8" x 18 7/16"(200mm x 468mm)
 | 5 | Elliptical | Opening | 
  
    | S718-FIXED-SS | 5 1/2" x 16 1/4"(140mm x 413mm)
 | 7" x 17 3/4"(178mm x 451mm)
 | 7 7/8" x 18 7/16"(200mm x 468mm)
 | 5 | Elliptical | Fixed |