18 Inch Square Umbrella Base Weight For Any Offset Cantilever And Outdoor Patio Stands With Side Slot Opening, Easy Set Up, Sand Fillable, Wind Resistant, Prevents Tipping On Windy Days

18-Inch Square Umbrella Base Weight - Single Unit
✔️ Sand-fillable side-opening base for easy setup and stability

This 18-inch square umbrella base weight bag fits around offset cantilever and outdoor patio stands. Fill with sand for ballast, using the side opening to position the base without lifting when full. Color: Side-slot - Black. Made from 900D rip-stop with reinforced sides, it’s water-repellent and resistant to sun, heat, and frost, so you can use it year-round.

✅ 18-inch square base weight fits offset cantilever stands
✅ Sand-fillable design with side opening for easy filling and placement
✅ 900D rip-stop material with reinforced sides for durability
✅ Water-repellent and sun-, heat-, and frost-resistant for year-round use
✅ Helps prevent tipping in windy conditions

💡 What is a base weight used for with outdoor umbrellas?

- Provides ballast to prevent tipping during gusty winds
- Lets you adjust weight by filling with sand for stable support
- Works with offset cantilever and patio stands for secure mounting
- Durable in sun, rain, and cold for year-round outdoor use