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Four square black plastic plates with handles and a funnel, 38 by 38 inches assembled

SlickBlue

SlickBlue 4-Piece Square Fillable Umbrella Base Set with Handle and Funnel, Black

SKU CH-DEM4-K339J

Four square plates hold wet sand to anchor offset umbrellas, reaching 238 lbs when full

  • TypeUmbrella Bases
  • ColorBlack
  • Stable umbrella support from 238 lbs wet-sand weight
  • Each 19-inch plate handles easily with built-in carry handle
  • 5-inch fill port and funnel speed up sand or water loading
  • Four galvanized pins lock plates together for firm assembly
  • PE and PVC construction resists weather for long outdoor life

Four-Plate Umbrella Base Set

The SlickBlue set provides four square plates that combine into a 38-inch base for offset and cantilever umbrellas. Each plate measures 19 by 19 inches and is moulded from PE and PVC with galvanised connecting pins. The empty assembly weighs 18 pounds, making it light enough to reposition before filling. It is intended for patio owners who need a modular, heavy-duty anchor for large freestanding umbrellas.

Fillable Weight and Portability

Each plate includes a 1.5-inch fill port and a supplied funnel for adding wet sand or water. When fully loaded the four plates reach 238 pounds, giving the umbrella a stable footprint in windy conditions. Integrated carrying handles let you move individual plates easily, and the pins allow quick assembly or disassembly for seasonal storage. The design suits users who want ballast that can be emptied and stored flat when not in use.

Sustained Wind Resistance

Wet sand ballast maintains its mass without evaporation, so the 238-pound load remains consistent through prolonged gusts. The PE and PVC shells resist UV degradation and cracking, while the galvanised pins prevent rust that could weaken the connections over time. This construction serves buyers who leave umbrellas deployed for entire seasons. It is not suited for installations that require permanent concrete anchoring or integrated lighting channels.

Highlights

  • Stable umbrella support from 238 lbs wet-sand weight
  • Each 19-inch plate handles easily with built-in carry handle
  • 5-inch fill port and funnel speed up sand or water loading
  • Four galvanized pins lock plates together for firm assembly
  • PE and PVC construction resists weather for long outdoor life

Specifications

TypeUmbrella Bases
ColorBlack

Questions about this item

How heavy does the 4-piece base become when every plate is filled with wet sand?

All four plates together reach 238 lbs when filled with wet sand, giving the cantilever umbrella a solid anchor in windy conditions.

Will the base plates get too hot or degrade after sitting in full sun all day?

The PE and PVC construction is weather-resistant and does not absorb heat like metal, so the plates stay cool to the touch and will not warp or fade under continuous exposure.

What pole diameter does the 1.5-inch fill port accommodate for my offset umbrella?

The 1.5-inch port is for adding sand or water only; the base set uses four galvanized pins to lock the plates together, and the umbrella pole mounts separately to the cross base you already own.

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