current order:   $0.00
delivery surcharge:   $25.00

Alera Interval Series Swivel and Tilt Task Desk Chair, Black (ALEIN4811)

Item # 599437
  • Model:  ALEIN4811
  • Interval Series Swivel/Tilt Task Chair
  • 250 lbs capacity
  • Black
  • Each

Additional Features:

  • Designed to fit in tight workspaces
  • Molded plastic shell resists impact
  • Waterfall seat edge helps relieve pressure points on the underside of legs
  • Five-star base with casters for easy mobility
  • Assembly required
  • Meets or exceeds ANSI/BIFMA standards
  • 25% pre-consumer, 5% post-consumer, 30% total recycled content


  • Adjustability:  360° Swivel, Back Height Adjustment, Pneumatic Seat Height Adjustment, Tilt, Tilt Lock, Tilt Tension
  • Arms:  No
  • Back Size:  16 1/2"W x 16 1/2"H
  • Base/Frame Color:  Black
  • Base/Frame Material:  Nylon
  • Base Style:  Five-point star with 2" hooded casters
  • Seat/Back Color:  Black
  • Seat Size:  19 1/2"W x 17 3/4"D
  • Upholstery Color:  Black
  • Upholstery Material:  100% Acrylic
  • Overall Height:  34" to 39"

Arm Compatibility:

  • Alera IN49AKA10B Height Adjustable T-Arms
  • Alera IN49AKB10B Fixed T-Arms
[Model ALEIN4811]
All prices listed are delivered prices from Costco Business Delivery. Merchandise can only be delivered to businesses within the greater Puget Sound, San Francisco Bay, Las Vegas, Los Angeles, San Diego, Phoenix and Atlanta metropolitan areas. Product availability and pricing are subject to change without notice.

Delivery orders under $250, before tax, will be charged a $25 delivery surcharge. Additional delivery fees may apply, including re-delivery charges if applicable. Enjoy next-business-day delivery (in most areas) when you place your order by 3 p.m. Orders placed after 3 p.m. will be processed the following business day. For additional questions regarding delivery, please call (800) 788-9968. products can be returned to any of our more than 500 Costco warehouses worldwide.