Set of 4 Locking Wheels
Stylish, Reliable & Weather-Resistant Outdoor Umbrella
Elevate your outdoor lounging experience with the Shademaker Aquarius 7.5’ Square Centerpost Umbrella! This weather-resistant umbrella features a commercial-grade center pole made from hard-wearing, powder-coated aluminum so that you can enjoy a durable and reliable shade for years to come. For longer-lasting performance, the framework of the canopy is powered by heavy-duty nylon hubs, metal fasteners, and fiberglass ribs.
Available in a variety of contemporary colors and neutral tones, Aquarius is made from 100% solution-dyed acrylic and polyester fabric, woven by two of the most popular names in outdoor fabrics: Sunbrella® and O'Bravia®. These premium materials offer superior resistance to UV rays, mildew, fading, wear, and tear, making this umbrella perfect for any commercial, market, or residential space.
Also available in 7.5' Octagon and 9' Octagon models.
Why Choose the Aquarius 7.5' Square Centerpost Umbrella
1. Commercial Grade Fiberglass Ribs
Constructed using contract-grade fibreglass ribs so that you benefit from high tensile flexibility, capable of withstanding wind-induced stress without permanent deformation or breakage—ideal for demanding outdoor conditions.
2. Easy Push-Up Automatic Locking System
Features an integrated push-up lift mechanism with auto-lock functionality so that you can deploy & secure the canopy in one fluid motion, eliminating the need for cranks, pulleys, or external hardware.
3. Industrial-Grade Nylon Hub & Fittings
Built with injection-moulded nylon hubs & fittings so that you achieve superior joint stability, reducing wear at connection points and ensuring long-term mechanical integrity under repeated use.
4. High-Performance Canopy Fasteners
Equipped with advanced canopy fastening components so that your fabric remains firmly tensioned, enhancing wind resistance while maintaining a clean, professional appearance.
5. Perfect for Residential & Commercial Use
Designed to meet the demands of both private & public environments—so that you can deploy it confidently in cafés, resorts, patios, or even ocean & poolside installations—where corrosion resistance & structural reliability are essential.
6. Includes Weatherproof Protective Cover
Supplied with a UV-resistant, water-repellent cover so that you can shield the umbrella during off-use periods, minimising material fatigue and prolonging operational lifespan.
7. Different Mounting Kits & Base Weight Options
Compatible with a range of mounting systems—from in-ground fittings to freestanding cast aluminium bases—so that you can select the most appropriate stabilisation method for your site conditions, usage pattern, and mobility needs.
NOTE: Images displayed above may feature both square and octagon canopy options to demonstrate lifestyle settings and mounting/base options. Additional color options are available upon request. Check them HERE or CONTACT US for details.
What's Included
- Aquarius 7.5 ft. Square Umbrella
- Protective Cover
- Mounting Kit Options
- Concrete Mount Kit with External Stem
- In-Ground Mount Kit with External Stem
- Base Weight Options
- Athens Base with Wheels
- Aurora Base with Wheels
- Commercial Cast Aluminum Base
- 115 lbs. Z-Plate with or without Wheels
Mounting Kits, Base Weights, & External Stems Explained
Choose the right support system to keep your Patio Umbrella stable and secure in any setting. Opt for a permanent mount kit for a secure, fixed installation or a freestanding base for flexibility and easy repositioning.
Check the Base Weight Matrix for the recommended base weight and alternative options.
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Concrete Mounting Kit
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Plate Dia. - 8.46" | Thickness - .63" | Weight - 7.76 lbs Includes: Adapter plate and expansion bolts. External stem is required (sold separately) |
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In-Ground Mounting Kit
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Plate Dia. - 8.46" | Thickness - .63" | Weight - 6.62 lbs Includes: In-ground fitting External stem is required. |
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External Stem
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Weight: 4.8 lbs | Size: 7.75″ | Height: 15.25″ For use with Aquarius and Libra. Required for Steel Base Plates and Mounting Kits. Available in: Shadow Graphite, Architectural Bronze, and Arctic White |
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Athens Base with Wheels
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Weight: 108 lbs. | Size: 20.47" | Height: 20.55" Compatibility: Aquarius and Libra Umbrellas Material: Cast Aluminum Available Finish Colors: Shadow Graphite and Arctic White Check product page HERE. |
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Aurora Base with Wheels
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Weight: 100 lbs. | Size: 24" | Height: 21.22" Compatibility: Aquarius and Libra Umbrellas Material: Cast Aluminum Available Finish Colors: Shadow Graphite, Architectural Bronze, and Arctic White Check product page HERE. |
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Commercial Cast Aluminum Base
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Weight: 150 lbs. | Size: 22" | Height: 22.3" Compatibility: Aquarius and Libra Umbrellas Material: Cast Aluminum Available Finish Colors: Black and Bronze Check product page HERE. |
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Z-Plate
Z-Plate with Wheels
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Item No: ZB115 Weight: 115 lbs Size: 26″ Thickness: .63″ --- Can be purchased with locking wheels Item No: ZBWH-SM Compatible With: ZB115 Size: 2″ Diameter Weight: 1.2 lbs Check Product Page HERE: ZB115 |
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Add-on Weight
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Optional cast iron weight adds 30 lbs. to the cast aluminum Athens and Aurora bases. Weight: 30 lbs. | Size: 12" | Height: 2" Compatibility: Aquarius and Libra Umbrellas Material: Cast Aluminum |
Product Specification
Below are the key dimensions of the Aquarius 7.5' Square Centerpost Umbrella.

| Key | Description | AQU-23S |
| Canopy Shape |
Square |
|
| Coverage | 51 sq ft | |
| Ribs | 8 | |
| Size | 7.5 ft | 2.3 m | |
|
A |
Lower Hub Height (Open) |
6’ 3” ft | 1.9 m |
|
B |
Rib End Height(Open) |
6’ 9” ft | 2.0 m |
|
C |
Canopy Length (Diagonal) |
10’ 8” ft | 3.3 m |
|
D |
Canopy Width |
7’ 7” ft | 2.3 m |
|
E |
Overall Height (Open) |
7’ 8” ft | 2.3 m |
|
F |
Overall Height (Closed) |
7’ 8” ft | 2.3 m |
| G | Rib End HEIGHT (Closed) | 2’ 5” ft | 0.7 m |
Product Resources
For more information on specifications, manuals, warranty, technical sheets, and maintenance, refer to the following resources:
- Aquarius Specifications
- Aquarius Manual
- Aquarius Manual (French)
- External Stem Specifications
- Concrete Mount Kit - MKC23
- In-Ground Mount Kit - MKG23
- Mount Kits Manual
- Aspen Base Manual
- Athens / Aurora Base Manual
- External Stem Manual
- Sand Anchor Manual
- Z-Plate Base Manual
- Base Weight Matrix
- Wind Scale
- Shademaker Maintenance
- Shademaker Fabric 2025
- Shademaker Warranty
- Shademaker Catalogue 2025
Shipping & Returns
We ship across the contiguous United States. Shipping to Alaska and Hawaii may be available on request.
Estimated delivery timing is shown above for each product.
Smaller items ship via parcel carriers. Larger items are delivered curbside or via scheduled freight.
Optional services such as inside delivery & package removal, and assembly may be available at checkout.
Returns are accepted within 30 days of delivery for eligible items.
Please note:
- Umbrellas and related accessories are non-returnable unless faulty or damaged
- Select large furniture items are not eligible for return once shipped unless faulty or damaged
- Large items may incur return shipping and handling costs
For full details, please see our Shipping and Returns & Refunds policies.









