About Master Flow™ Snap‑on Rails
Rails were developed for ease of installation. They are an easy way to attach flanged register boxes to joists or other nailing surfaces. A pack of 6 rails can install 3 register boxes.
Features & Benefits
-
COST EFFECTIVE
Bag of six can connect three register boxes -
VERSATILE
Also make great duct hangers -
EASY
24-in. length makes it easy to suspend boot between joists