Altum AquaBox®

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• Basin measures 52.5" x 52.5" x 20"h
• 2 plastic grates measure approx 24" x 48" each
• 220 gallon capacity
• Max static load: 2000 lbs
• Weighs 145 lbs
• Includes 1 center support column
Lifetime Warranty
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Product Details

AB52AB - Blue Thumb
52" Achelous AquaBox®

Blue Thumb's patented AquaBox® basins are produced in-house. Our 52" Altum basin is designed to provide a plentiful water reservoir with strength enough to support expensive and heavy fountains on its manageable, lightweight form. This basin also features a 2-piece removable grate top that includes a cut out for easy pump access with a cover to keep debris out when not in use. Additional support columns may be added when using heavier fountains. Made in the USA.


• Square basin suitable for large or multiple fountains
• Overall dimensions 52.5” diameter X 20” high
• Full grate dimensions and basin inner seat 48"x48" x 2.8"H
• 220 gallon capacity
• Maximum static load 2,000 lbs
• Weighs approximately 145 lbs (basin, grates and pump access cover)

Basin Kit Includes:
    • Reservoir basin with 4 molded supports
    • 2-piece grate basin cover
    • PVC Center support column
    • Pump access cover

Recommended add-on products:
    • Auto Fill Valve paired with a 30 psi Regulator for automatic water level maintenance
    • Mesh Sediment Screen to reduce debris falling through grate into the basin
    • Splash Apron to help prevent water loss
    • 4-5 bags of Polished Pebbles, in black or mixed, will cover grate when finishing
    • Optional Altum Aquabox® aluminum grates are available for additional strength.

Tech Specs

36" Achelous Basin - AB36AB 48" Achelous Basin - AB48AB 52" Altum Basin - AB52AB


Overall round basin 39.5" dia. x 16"H
Full cover grate 36 dia." x 2.8"H

Overall round basin 51..5" dia. x 16"H
Full cover grate 48" dia. x 2.8"H

Overall Square 52.5" x 52.5" x 20"H
Full cover grate 48" x 48" x 2.8"

Gallon Capacity

60 Gallons

95 Gallons

220 Gallons

Maximum Static Load

750 lbs

1,200 lbs

2,000 lbs

Product Weight

Approx. 45 lbs

Approx. 65 lbs

Approx. 145 lbs

Fountain Size

For use with Medium Fountains

For use with Large Fountains

For use with Large or Multiple Fountains

Product Resources

52" Altum Basin
Spec Sheet

Achelous & Altum
Installation Manual

Auto Fill Installation Video