M&M Manufacturing - M&M Manufacturing, 640-8X4X4, 640 Series, 4 in Collar

  • Item #: 640-8X4X4
  • MFR #: 640844
  • Brand Name: M&M Manufacturing
  • Manufacturers: M&M Manufacturing
  • Min. Order Qty: 1
  • Qty. Interval: 1
  • loading

Standard Size #640 Register Boxes are lined with 1'' Ductliner to provide an R-Factor of R-4. The #640 Register Box is 4'' Tall without Tabs