Insulated Slant Top Box No Flange

Insulated Slant Top Box No Flange

  • Available in R4, R6, & R8.
  • 3604NFS; 3606NFS; 3608NFS
  • Insulated supply or return boxes save time and money. The slant design allows easy installation in ceilings. The round connection on the back with straight through airflow design. Equivalent length supply 35' equivalent length return 10'.
  • Size 6" x 6" x 6" packed to order.
  • Size 8" x 4" x 5" available 12 per box.
  • Sizes 10" x 4" x 4" - 7", 10" x 6" x 4", 10" x 6" x 7" - 8"; packed to order.
  • Sizes 10" x 6" x 5" - 6"; available 12 per box.
  • Sizes 12" x 4" x 6" - 8", 12" x 6" x 6" - 8"; packed to order.
  • Sizes 14" x 4" x 8" packed to order.
  • Sizes 14" x 6" x 8" available 15 per box.