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Heavy Duty Gas Cylinder Replacement for Herman Miller Classic Aeron Chair, Class 4 TUV
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Heavy Duty Gas Cylinder Replacement for Herman Miller Classic Aeron Chair, Class 4 TUV
  • Brand: Flash Furniture
  • Part Number: Cylinder-H
  • Type: Office Chair
  • Color: White
  • Model #: 377384142020
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  • $63.99 
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5.5 inch Office Chair Gas Lift Cylinder-Office Chair Replacement Parts,Universal Size Fits Most Chairs,Heavy Duty Gas Lift Hydraulic/Pneumatic Piston(Black)
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  • $45.99 
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Seat Cushion, Ergonomic Memory Foam Seat Cushions for Office Chairs, Car, Long Trip, Desk Chair, Lab, Extra Large Size for Sciatica & Hip & Tailbone Pain Relief, Sciatica Support (Black)
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  • $39.99 
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Office Chair Gas Lift Cylinder, 5.5 Inch Stroke, Up to 1000 lbs, Universal Replacement Piston for Executive Seating, Salon Stools, Task Seats, Black
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  • $31.99 
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11 Inches-17 Inches Office Chair Gas Lift Cylinder Replacement, Tall Chair Cylinder 5.5" Stroke, Hydraulic Pneumatic Shock Piston, Heavy Duty 1000lbs, Fit for Most Office Chairs, BIFMA/Class 4 (Black)
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  • $65.99 
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Office Computer Desk Chair, Ergonomic High-Back Mesh Rolling Work Chairs with Wheels and Adjustable Headrests, Comfortable Lumbar Support, Comfy Flip-up Arms for Home, Bedroom, Study, Pink
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  • $97.97 
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10 Inches to 15 Inches Office Chair Gas Lift Cylinder Replacement, 4.5" Stroke, Hydraulic Pneumatic Shock Piston, Heavy Duty 1000 lbs, Universal Fit for Most Office Chair, Class 4, Black
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  • $61.99 
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Seat Cushion, Memory Foam Office Chair Seat Cushion for Office Chairs/Car/Long Trip/Desk Chair/Gaming, Extra Large Size for Sciatica & Hip & Tailbone Pain Relief, Sciatica Support (Black)
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  • $43.99 
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5.5" Office Chair Cylinder Replacement, Heavy Duty Hydraulic Gas Lift, Universal Size Fits Most Office Chairs, 5.5" Long Stroke Gas Lift
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5.5" Office Chair Cylinder Replacement, Heavy Duty Hydraulic Gas Lift, Universal Size Fits Most Office Chairs, 5.5" Long Stroke Gas Lift
  • Brand: Flash Furniture
  • Part Number: G202508271719-2
  • Color: White
  • Frame Material: Nylon
  • Model #: 913057355250
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  • $25.99 
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Office Chair Wheels - Replacement Rubber Wheels - Universal Fit 3 Inch Casters, Heavy-Duty Chair Casters, Noise Free, Fits 98% Chair, for All Floor (5)
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  • $45.99 
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Lumbar Support Pillow for Office Chair and Car, Premium Memory Foam Back Cushion for Back Pain Relief Improve Posture Ergonomic Cushion with Breathable Mesh Cover and Adjustable Straps
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  • $39.99 
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Seat Cushion for Tailbone Pain Relief, Office Chair Cushion, Memory Foam Large Cushion with Non-Slip Cover for Soft Support at Office Chair, Car Seat, Airplane, Floor Pillow, Black/Large
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  • $33.99 
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Sweetcrispy Ergonomic Office Chair Heavy Duty Task Desk Chair with Flip-up Arms, PU Leather, Adjustable Swivel Rolling Chair with Wheels, Beige
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Sweetcrispy Ergonomic Office Chair Heavy Duty Task Desk Chair with Flip-up Arms, PU Leather, Adjustable Swivel Rolling Chair with Wheels, Beige
  • Brand: Sweetcrispy
  • Part Number: VCJL-SW2892-1B-WT-02
  • Type: Adjustable Swivel Rolling with Wheels, with Flip-up Arms, PU Leather, White
  • Color: Beige
  • Model #: GACZP66BTJ
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  • $159.99 
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Gaming Chair with Pocket Spring Cushion, High Back Ergonomic 360° Swivel Chair for Office Gaming, Massage Lumbar Support Office Gaming with Footrest for Adults, 300LBS Capacity, Beige
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  • $194.99 
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Seat Cushion for Tailbone Pain Relief, Office Chair Cushion, Memory Foam Large Chair Cushion with Non-Slip Cover for Soft Support at Office Chair, Car Seat, Airplane Black/Large
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  • $33.99 
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Office Chair Cylinder Replacement - 4.7" Travel Length Fits Most Chairs, Heavy Duty Class 4 Gas Lift Hydraulic/Pneumatic Piston
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Office Chair Cylinder Replacement - 4.7" Travel Length Fits Most Chairs, Heavy Duty Class 4 Gas Lift Hydraulic/Pneumatic Piston
  • Brand: Flash Furniture
  • Part Number: MGS260115-2
  • Color: White
  • Frame Material: Nylon
  • Model #: 468157178698
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  • $33.99 
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High Back Office Chair with Retractable Footrest & Lumbar Pillow, Ergonomic Bonded Leather Executive Desk Chair, Thick Padded Cushion, 90135° Reclining Chair for Home Office,Black
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  • $175.99 
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| Ergonomic Office Chair | Mid-Back Swivel Desk Chair | Breathable Backrest & Lumbar Support | Adjustable Height | Sponge Seat | Rolling Wheels | Black | for Adults & Women
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  • $58.97 
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Large Memory Foam Office Chair Cushion Seat Pad, Ergonomic Seat Cushion for Sciatica, Tailbone & Back Pain Relief, Car Seat Cushions for Driving
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Large Memory Foam Office Chair Cushion Seat Pad, Ergonomic Seat Cushion for Sciatica, Tailbone & Back Pain Relief, Car Seat Cushions for Driving
  • Brand: Flash Furniture
  • Part Number: BE-25 Flying Feather Cushion Black
  • Type: Office Chair
  • Color: White
  • Model #: 396536773943
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  • $39.99 
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Office Chair Cylinder Replacement with Removal Tool (As Seen On PBS) - Heavy Duty Pneumatic Gas Lift Piston for Desk Chairs and Gaming Chairs - Universal Fit
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  • $71.99 
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Lumbar Support Pillow for Car, Memory Foam Lumbar Pillow for Lower Back Pain Relief - Back Cushion for Driving, Chair Support for Car-Office Chair, Wheelchair - Black
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  • $39.99 
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Office Computer Desk Chair, Ergonomic Mid-Back Mesh Rolling Work Swivel Task Chairs with Wheels, Comfortable Lumbar Support, Comfy Flip-up Arms for Home, Bedroom, Study, Student, Gray
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  • $83.97 
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Lumbar Support and Car Neck Pillow for Office Chair and Car Seat Softness Memory Foam Erognomic Seat Cushion with Adjustable StrapComfortable Ergonomic Design (Black, Polyester)
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  • $50.99 
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Vibration Back Massager Seat Cushion with Heat,10 Motors Massage Chair Pad,Chair Massager for Pain Relief at Office/Home,Mothers Day Gifts for Mom Dad
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  • $103.99 
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Fix Sinking Office Chair, Avoid Sinking of Office Chair Height-Adjustable Cylinder Replacement No Tools Needed
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Fix Sinking Office Chair, Avoid Sinking of Office Chair Height-Adjustable Cylinder Replacement No Tools Needed
  • Brand: Flash Furniture
  • Type: Office Chair
  • Color: White
  • Frame Material: Nylon
  • Model #: 639832461650
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  • $23.99 
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Office Chair Cylinder Replacement (As Seen On PBS) - Heavy Duty Pneumatic Gas Lift Piston for Desk Chairs and Gaming Chairs - Universal Fit
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Office Chair Cylinder Replacement (As Seen On PBS) - Heavy Duty Pneumatic Gas Lift Piston for Desk Chairs and Gaming Chairs - Universal Fit
  • Brand: Flash Furniture
  • Part Number: OAS-2020
  • Type: Office Chair
  • Color: White
  • Model #: 908250640797
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  • $59.99 
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14.2 Inches-22.2 Inches Office Chair Cylinder Replacement Parts, 8in Stroke,Heavy Duty 1000 lbs,Hydraulic Chair Gas Lift Universal Gas Cylinder Fit Most Office Chairs/Gaming Chairs, Class 4
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  • $59.99 
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1pcs Office Chair Cylinder Replacement Hydraulic Lift Cylinder, Silver Office Chair Cylinder for Gaming Chairs, 2.5inch
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1pcs Office Chair Cylinder Replacement Hydraulic Lift Cylinder, Silver Office Chair Cylinder for Gaming Chairs, 2.5inch
  • Brand: Flash Furniture
  • Part Number: DYX07041855
  • Type: Office Chair
  • Color: White
  • Model #: 367445279720
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  • $35.99 
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Seat Cushion Memory Foam Pads for Truck Driver Office Chair Cushion Home Chair Cushion Car Non Slip Pad Sitting Ergonomic Cushions for Office Workers Car Drivers (Dark Grey)
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  • $73.99 
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Ergonomic Seat Cushion with Adjustable Strap, Memory Foam Office Chair Seat Cushion with L-Shaped Design, Car Seat Cushion Fits for Truck Driver Semi Truck, Gaming Chair, Desk, Dark Gray
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  • $59.99 
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Autonomous ErgoStool Ergonomic Stool Adjustable Wobble Chair Cool Gray
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Autonomous ErgoStool Ergonomic Stool Adjustable Wobble Chair Cool Gray
  • Part Number: A80
  • Type: Task Chair
  • Color: Gray
  • Material: Fabric
  • Model #: A80-2025
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  • $149.00 
  • Free Shipping
  • $139.32 - $149.00
Autonomous ErgoChair X Office Chair Black
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Autonomous ErgoChair X Office Chair Black
  • Part Number: ECX_B
  • Color: Black
  • Material: Mesh
  • Frame Material: Plastic
  • Model #: ECX_B
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  • $279.00 
  • Free Shipping

Bestselling Office Chairs Reviews:

Yan L.
3/24/2026 7:15:08 AM
Comfortable and Sturdy Office Chair

“ I would recommend it to anyone looking for a budget-friendly office chair. ”

BRTHORY 500LBS Big and Tall Office PC Chair with Adjustment Lumbar Support Ergonomic Executive Heavy Duty Gaming Chair for Long Hours Sitting, Computer chair with Flip-up Armrest, PU Leather
Brian K.
12/11/2025 2:02:55 PM
Sihoo High-Back Chair

“ Easily the best quality comfortable office/gaming chair around for the price. ”

SIHOO High-Back Ergonomic Office Chair, Mesh Desk Chair with Adjustable 3D Armrest, Lumbar Support and Headrest, for Home & Office, Black
EBB2
1/24/2025 8:48:15 AM
Great value office chair

“ This is a well built office chair with all the right features. ”

SIHOO High-Back Mesh Office Chair with Lumbar Support, Ergonomic Chair for Desk, Breathable Mesh Adjustable Headrests for Home Office, Black
Shi Z.
6/13/2023 2:30:33 PM
Nice, comfortable chair

“ Overall, it's a very functional and comfortable office chair to have. ”

Primy Ergonomic Office Chair, Breathable Mesh Desk Chair, Lumbar Support Computer Chair with Wheels and Flip-up Arms, Swivel Task Chair, Adjustable Height Home Gaming Chair
KBSH
8/22/2022 8:07:27 PM
Sturdiness Over Comfort & That's OK

“ More often pricier office chairs are comfortable for the first few weeks until their padding has been worn in, and then you're stuck with a creaky brick that no longer feels comfortable as it did initially. ”

SIHOO High-Back Ergonomic Office Chair, Mesh Desk Chair with Adjustable 3D Armrest, Lumbar Support and Headrest, for Home & Office, Black