# Sail Flag Square Water Ballast

Use this Square Water Ballast in conjunction with the Heavy-Duty Cross Base to add weight and stability to your medium or large sail flag even when the weather won't cooperate. An inflatable/ deflatable heavy duty water weight with easy fill plastic port and an attached cap.

-   Holds 4.25 Gallons of water
-   Weighs 35lbs. when filled with water, .5lbs. when empty
-   21" w x 21" d

## Details

- **Price:** 17.17 USD
- **Vendor:** United Sign Company
- **Type:** Accessory
- **Tags:** Accessories_Sail Flag Base, Blade Flag Hardware, Flags & Streamers

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 17.17 USD | In stock |

## Images

- Blue inflatable sandbag for outdoor signage, ideal for securing A-frames or gas station price signs.

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> Source: [UnitedSign](https://www.unitedsign.com/products/sail-flag-square-water-ballast)
> Updated: 2026-06-30