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14-Inch Mega Capacity Drywall Flat Finishing Box
- Mfg.#
- 4-770
- Sku#
- 4313888
- DESIGNED TO PERFORM | A deeper back spine makes hand operation easier, faster and more accurate. Hard coat anodized aluminum housing for durability. Fits all major brand drywall flat box handles.
- EASY CLEANING | The lid has a fixed hinge for smoother operation and it opens extra wide for fast, easy cleaning.
- EASY OPERATION | 10 pressure settings so you can dial in the perfect result. A deeper set pressure lid allows for easier push operation than other flat boxes on the market.
- ADJUSTABLE | A flexible brass blade allows you to provide the proper compound application and crown - whether you're applying the first fill coat or the final finish coat. Butt and flat joint edges are also feathered to perfection.
- CONSISTENT COVERAGE | Expertly dispense an even, consistent layer of drywall joint compound to taped flat and butt joints on walls and ceilings.
* Estimated stock levels as of Wed, Apr 1, 2026. All items subject to prior sale. Prices may vary between stores and online. Please call ahead to confirm availability of items marked as Limited Stock.
Description
A flat box is used in conjunction with a flat box handle to efficiently apply a crowned, feathered coat of joint compound over taped flat seams on walls and ceilings.
The MEGA capacity flat boxes can hold approximately 30% more compound than standard capacity flat boxes, enabling few trips back and forth to the pump. The trade off is that MEGA capacity fla boxes are bulkier and heavier when full due to their increased height. Ultimately, the choice between the two styles is a matter of personal preference.
Specifications
General
| Includes | Premium Protective Case |
|---|---|
| Type | Flat Box |
Dimensions
| Width | 14 in |
|---|
Manufacturing Details
The following information is subject to change without notice
| Manufacturer Warranty | 7 Years |
|---|---|
| Shop USA | Yes |
