Replacement Seat for Herman Miller Classic Aeron Size B Medium (Black Mesh). Seat Material Type Fabric. Maximum Weight Recommendation 300 Pounds. Recommended Uses For Product. 18″D x 20.25″W x 6H. Fits Your Herman Miller Chair – Measuring 20.25 inch Width x 18 inch Depth x 6 inch Height, our Herman Miller Aeron replacement parts are designed to fit any Classic Aeron chair size B. Replace your old chair seat with great ease! Tough & Durable – Our Aeron Seat Replacement parts feature a reinforced, heavy-duty frame to ensure that it won’t break, crack, or get damaged easily. Sit on your new cushion without worries! Sit Comfortably – This seat is made of filament which offers fantastic ventilation, so you can stay cool all day. Our seat’s black mesh fabric also matches the mesh of Herman Miller Aeron chairs. Fuss-Free Installation – No need to call a handyman to put these chair seat replacements in place. This new Aeron chair seat comes with a manual that’ll help you remove and replace your old seat. Ready To Use – With this new Replacement Seat, there’s no need to assemble mesh, and foam required. The seat itself comes ready to install so you’ll only need a few minutes to revamp your Herman Miller Classic Aeron desk chair. Not Compatible with Aeron SIZE C. Not Compatible with Aeron Remastered. Want To Renew Your Old Office Chair? Office chairs are not always indestructible. What once was a sturdy and comfortable new swivel chair will also age and wear down. If you use your chair regularly, then it’s likely that you’ll eventually see its frame start to break or crack. The firm yet soft mesh you used to love will also end up ripping, sagging, or losing tension as time passes by. But all of this shouldn’t mean that you have to say goodbye to your favorite chair. With proper replacement parts, you can restore your chair and bring it back to its former glory! The Herman Miller Replacement Seat by FOAMON lets you breathe new life into your chair. With a 20-inch depth, an 18-inch width, and a 6-inch height, this seat replacement is exactly the right size for Herman Miller Classic Aeron Chairs in Medium Size B. With this replacement, you can easily replace broken or tattered seats without having to throw away your entire office chair! Whether you’re an office worker who needs to sit down in front of a computer all day or a student who spends hours studying and writing on your study table, you need a chair that can support your weight for long periods of time. That’s why our seat replacement is made using heavy-duty materials and comes with a reinforced frame to ensure that it won’t break, crack, or get damaged right away even if you sit on it all day. Designed For All-Day Comfort. Sitting on a chair for hours can trap heat and cause our bottom and thighs to sweat. This can make us feel uneasy and distract us from getting our work done efficiently. Designed with your comfort in mind, our seat is crafted using pellicles that offer proper ventilation. This way, you can keep yourself cool and comfortable while you finish your tasks for the day. Our seat also gives firm support to your bottom while still being soft to touch. More Reasons To Get This Seat Replacement from FOAMON! That Brand New Look. Just because you’ve had your swivel chair for years doesn’t mean it’s okay to settle for replacement parts that don’t match or look out of place. Our durable seat replacement is covered in black OEM LIKE mesh fabric – With this, you’ll be able to fix up your chair and restore it to its premium-quality look. Replace your old seat with four easy steps. Use a 10mm socket, ratchet wrench, and 4mm hex key to remove the nuts and screws attaching the seat link to the frame. Remove the seat frame using a ratchet wrench and 6mm hex bit to remove the hip pivot screw from the swing arm. Place the new seat between the swing arms and attach it using the hip pivot screws. Reconnect the seat links using the original screws and nuts. For detailed instructions, refer to the manual with images. Great Gift For Colleagues And Students. Have you noticed that a co-worker or a friend is using a chair that is starting to wear out? Perhaps your child or sibling’s mesh seat has started to sag or tear apart? If so, you can make their lives better by giving them an accessory that’ll upgrade their old chair! This seat replacement makes for a fantastic present for anyone who sits for hours on their office chair. We offer the best prices around on high quality products. Our E-store includes media such as books, movies, music and games while offering electronics, toys, sporting apparel, clothing, tools, general home, garden items and more. We are always working hard to ensure your package arrives as soon as possible. We do not accept P. Please provide a physical address. We try our very best to make sure every customer is completely satisfied. If there’s a problem, message us! We’re happy to help.