# Master Flow 8 in. x 4 in. x 4 in. 90 Degree Register Box with Flange

**Brand:** [Master Flow](https://shop.coreranger.com/brands/Master%20Flow)
**SKU:** 90RBF8X4X4
**Price:** $37.42 · in stock
**URL:** https://shop.coreranger.com/product/master-flow-8-in-x-4-in-x-4-in-90-degree-register-box-with-flange-204090966

## Specifications

| Spec | Value |
|---|---|
| Model # | 90RBF8X4X4 |
| Pack Size | 1 |
| Internet # | 204090966 |
| Returnable | 90-Day |
| Store SKU # | 1000799072 |
| HVAC application | All HVAC types |
| Product Depth (in.) | 10.375 in |
| Product Width (in.) | 6.375 in |
| Product Height (in.) | 8.75 in |
| Product Weight (lb.) | 2.4 lb |
| Manufacturer Warranty | Free from Manufacturer Defect at Time of Delivery. |
| Brand/Model Compatibility | Universal Compatibility |

## Description

The Master Flow 8 in. x 4 in. x 4 in. 90-Degree Register Box with Flange creates a right-angle transition from round pipe or insulated flexible duct to an air register. This box is made of galvanized steel. It can be installed with sheet metal screws. It is suitable for most HVAC applications.

• Creates a 90° transition to a register grille
• Durable galvanized steel construction
• Used in ceiling applications (snap-on rails sold seperately)