Master Flow 14 in. x 6 in. to 7 in. Universal Register Box with Flange

Master Flow Universal Register Boxes create a straight (in-line) transition from round pipe or insulated flexible duct to an air register or grill. A built-in flange provides space for easy joist attachment, creating a more secure installation.

Order Processing: After your payment is authorized and verified, we will start processing your order and this process can take from 1 to 2 business days, so please be patient with us. If we are unable to process your order due to inaccurate or incomplete payment or incorrect address information, your order processing may be delayed.

Carrier: UPS/FedEx/USPS. Delivery Timescale: More than 90% of orders arrive in 10 business days after despatch.

FREE RETURNS on all orders!
The following conditions must be met:

1. Items must be returned within 30 days after the purchase date.
2. Items must be unworn, undamaged and in original packaging.