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Ships within 48 hours · Estimated delivery Sep 2 - Sep 7
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Hooker Aero Chamber Muffler , 3.5" Centre - Centre # 21507HKRHooker Aero Chamber Muffler , 3. 5" Centre Centre # 21507HKR Muffler, Aero Chamber, 3 1 2 in. Inlet 3 1 2 in. Outlet, Steel, Aluminized, Each Improve your exhaust flow by 23 percent with Hooker Aero Chamber mufflers. These mufflers are designed to do much more than simply muffle exhaust noise; they produce a deep throaty rumble that will not change ever! Plus, Aero's aerodynamically designed chambers flow better to deliver more horsepower and torque
Hooker Aero Chamber Muffler , 3.5" Centre - Centre # 21507HKRMuffler, Aero Chamber, 3 1/2 in. Inlet/3 1/2 in. Outlet, Steel, Aluminized, Each
Improve your exhaust flow by 23 percent with Hooker Aero Chamber mufflers. These mufflers are designed to do much more than simply muffle exhaust noise; they produce a deep throaty rumble that will not change--ever! Plus, Aero's aerodynamically designed chambers flow better to deliver more horsepower and torque thanks to Hooker's unique step principle. The stepped acceleration chamber increases exhaust gas velocity for maximum flow. An aerodynamic lens directs sound pressure into and out of the muffler while resonance chambers and sound absorption chambers create the sound. And, to keep Aero Chamber mufflers from rusting from the inside out--a stainless steel perforated plate to eliminate internal rust. Muffler cases are available in 16-gauge aluminized steel or stainless steel but it's truly what's inside that makes it so sophisticated. Need a muffler? Go with Hooker Aero Chamber mufflers--the real master of flow!
Case Shape:Oval
Inlet Diameter (in):3.500 in.
Inlet Quantity:One
Inlet Location:Center
Outlet Diameter (in):3.500 in.
Outlet Quantity:One
Outlet Location:Center
Internal Construction:Chambered
Muffler Material:Steel
Muffler Finish:Aluminized
Case Length (in):14.000 in.
Overall Length (in):18.000 in.
Thickness (in):4.750 in.
Width (in):10.250 in.
Outlet Style:Standard, without tip
Quantity:Sold individually.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.1 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 5
Great design and easy to put together!
Color: Black - Square
Works very well and this is easily put together!
I filled mine with water and it is more than heavy enough to withstand a strong gust of wind. Highly recommended!
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Reviewed in the United States on May 31, 2026
★★★★★ 4
Nice base in general
Base seemed nice coming out of the box. Good size, though double check it will work for your needs as my mistake it was just a bit too big. Filled with water, it is a decent base to utilize with an umbrella I feel.
Not sure if others' bases had this, too, but mine has some kind of object rolling around the side. No way to get it out. Not sure if when the hole is drilled into the top, it's from that? Also, when filling with water, there were unpleasant fumes coming out. Water mixing with the rubber material on the inside?
All that said, for the price, this is a good option to consider for an umbrella base.
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Reviewed in the United States on May 17, 2025
★★★★★ 5
Great Stand!
Color: Black - Fluted
Awesome stand for the umbrella. Works well. Has kept the umbrella in place.
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Reviewed in the United States on April 22, 2026
★★★★★ 5
Sturdy, Reliable, and Visually Pleasing - A Must-Have Patio Accessory!
I recently purchased the Best Choice Products 55lb Capacity Fillable Umbrella Base Stand for my backyard patio, and I have to say, I'm absolutely thrilled with this purchase. This umbrella stand has quickly become a reliable and crucial part of our outdoor setup.
To start off, the assembly was straightforward and didn't take up much time. The instructions were clear, easy to understand, and within minutes we were able to get it set up. No additional tools or complex steps were necessary, which was a great relief as I'm not exactly a DIY person.
I filled it with sand, which brought it to its maximum capacity of 55lbs, and the stability it provides is exceptional. We've had several windy days since I've purchased the stand, and not once has my patio umbrella tilted or tipped. The 2 adjustment knobs on the sides help to secure the umbrella pole firmly, which provides an additional layer of stability.
The stand's faux wicker design is another aspect I absolutely love. It beautifully complements my other patio furniture and adds a touch of sophistication to my outdoor decor. The plastic used for the stand is of high quality and convincingly mimics the look of real wicker without the associated maintenance or weathering concerns.
Being a round base, it conveniently fits in our patio corner without taking up too much space. Moreover, it's been outside in various weather conditions - from intense sun to rain showers - and it hasn't shown any signs of wear or color fading. The material seems durable and capable of withstanding different weather patterns, which is exactly what I needed.
Also, despite being sturdy and heavy when filled, the base is easy to move around when empty. This makes it convenient to store away during the winter or rearrange when we want to change up our patio layout.
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Reviewed in the United States on May 22, 2023
★★★★★ 5
Umbrella base
Color: Black - Sunburst
Great product!
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Reviewed in the United States on May 15, 2026