# Master Flow 10 in. x 4 in. to 6 in. Register Box with Flange

**Brand:** [Master Flow](https://shop.coreranger.com/brands/Master%20Flow)
**SKU:** RBF10X4X6
**Price:** $18.98 · in stock
**URL:** https://shop.coreranger.com/product/master-flow-10-in-x-4-in-to-6-in-register-box-with-flange-202191803

## Specifications

| Spec | Value |
|---|---|
| Model # | RBF10X4X6 |
| Pack Size | 1 |
| Internet # | 202191803 |
| Returnable | 90-Day |
| Store SKU # | 977217 |
| HVAC application | All HVAC types |
| Product Depth (in.) | 6 in |
| Product Width (in.) | 12 in |
| Product Height (in.) | 9 in |
| Product Weight (lb.) | 1.46 lb |
| Manufacturer Warranty | Free from Manufacturer Defect at Time of Delivery. |
| Brand/Model Compatibility | Universal |

## Description

The Master Flow 10 in. x 4 in. x 6 in. Register Box with Flange is designed for 6 in. round ducts. This 30-Gauge register box with flange is made of zinc-coated galvanized steel. The maximum temperature rating is up to 390 degree F and the minimum temperature rating is as low as 100 degree F.

• Creates a straight, in-line transition to a register grille
• Durable galvanized steel construction
• Used in ceiling applications (snap-on rails sold seperately)