# Master Flow 10 in. x 4 in. - 8 in. Universal Register Box

**Brand:** [Master Flow](https://shop.coreranger.com/brands/Master%20Flow)
**SKU:** RB10X4X8
**Price:** $17.61 · in stock
**URL:** https://shop.coreranger.com/product/master-flow-10-in-x-4-in-8-in-universal-register-box-310210536

## Specifications

| Spec | Value |
|---|---|
| Model # | RB10X4X8 |
| Pack Size | 1 |
| Internet # | 310210536 |
| Returnable | 90-Day |
| HVAC application | All HVAC types |
| Product Depth (in.) | 8 in |
| Product Width (in.) | 10 in |
| Product Height (in.) | 7.875 in |
| Product Weight (lb.) | 0.9 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 8 in. universal register box is used to create a straight (in-line) transition from round pipe or insulated flexible duct to an air register or grille. It is made of 30-Gauge, galvanized steel to provide strength and durability. This universal register box can be installed with sheet-metal screws.

• Creates a straight transition from round pipes to grilles
• 30-gauge galvanized steel construction offers long-term use
• Easy to install with sheet-metal screws (not included)