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GAF Master Flow 12 in. x 2-1/4 in. to 6 in. End Register Box - (Pack of 6)

The Master Flow 12 in. x 2-1/4 in. x 6 in. End Register Box is made of galvanized steel. This box creates a right-angle, center-end transition from the system run to an air register. It is ideal for a situation where the opening in the floor runs parallel to the floor joists and header. It can be installed using sheet metal screws.

  • Made of galvanized steel
  • Can be used in a situation where the opening in the floor runs parallel to the floor joists and header
  • Creates a right-angle, center-end transition from a 6 in. system run to a 12 in. x 2-1/4 in. air register
  • Can be installed with sheet metal screws (not included)
  • Always seal seams with building code-approved sealant or duct tape (not included)
  • Always insulate ductwork for greater system efficiency and comfort (insulation not included)


Refund Policy:

Enjoy peace of mind with Big Blue Products' 30-day refund policy. Contact us within 30 days of purchase for returns or exchanges under the following conditions:

  • In case of receiving the wrong item or a defective product (excluding man-made damage), please provide a photo as proof. Upon confirmation, we will either accept the return or provide a replacement.
  • If the item is in good condition and matches the description, the buyer is responsible for return shipping costs.

Contact Us:

We can be contacted at any time through eBay messages if you have any questions, comments, or product requests. We will respond to you within 24 hours and do our best to help you out! We encourage our customers to contact us with any questions or concerns! We'd like to be sure you are completely satisfied with your purchase.

Big Blue Products, inc 130 Eileen Way Syosset, NY 11791 United States