Office Master EV74 Electrostatic Discharge ESD Mid Back Chair

Please note: This chair is custom-made and non-returnable. All fabric colors shown on your computer screen are approximate, based on the resolution of your monitor and subject to variation from the actual color on physical chairs. For more accurate ideas of color tones, etc. please contact or call 888-456-ERGO to obtain a sample or fabric swatch.
Office Master EV74 Electrostatic Discharge ESD Mid Back Chair click image to enlarge
This product has the following options available:
List Price: $729.00
Our Price: $563.00
You Save: $166.00
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Office Master EV74 Electrostatic Discharge ESD Mid Back Task Chair


General Information


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Office Master EV74 Electrostatic Discharge ESD Multi Functioned Cross Performance Task Chair


Office Master EF74 Electrostatic Discharge ESD Multi Functioned Cross Performance Task Chair





Description of Office Master ESD EV74 Chair:


Office Master ESD chairs are constructed from our most popular models to meet special ESD seating requirements. Fabrics are made of 99% nylon and 1% carbon fiber. We also stock 7 ESD fabric colors and 2 ESD vinyls.

  • Multi-functioned cross performance mid back sized chair.

  • Seat height: 17" - 22".

  • Weight capacity: 300 lbs





Option 1 : Fabric Colors


SC Micron Blue Fabric Color

SC Micron Blue

SC Black Fabric Color

SC Black






Option 2 : Arms Type


Group 1:


JR-77 - Height adjustable T arms with molded armpads Adjustable height range of 4.25" (approx. .5 - 2" higher than most Group1 arms) 12 year limited warranty








Option 3 : Arm Pads


ARMazing Memory Foam Arm Pads are a great addition to any office or home chair. The memory foam pads will contour to your elbows and forearms and offer you total comfort and support while reducing pressure points. All of these benefits will help increase productivity while reducing overall body stress. Elastic shroud attaches snugly to any existing arm rest from 6" to 11" long. Makes your arm rests much softer and more comfortable.


  • Helps increase circulation

  • Helps maximize the benefits of proper ergonomics

  • Sleek design and sung fit gives built-in lock

  • Fits all adjustable chair arms from 6" to 11"





Option 4 : Cylinders


5" Cylinder        Standard Approximately 17" to 22"



3" Cylinder        Approximately 15" to 19"



6" Cylinder        Approximately 18.5" to 25"







Option 5 : Casters


Office Master CAS-REG Regular Caster CASREG office chairs carpet


Office Master CAS0065-S Multi-surface Soft office chairs Casters


CAS0050-SS - "Safety soft casters" minimizes chair movement when the chair is NOT in use. (5 per set)


CAS0050-RB - "Reverse-braking casters" lock in place when the chair IS in use (5 per set).


GLD-R - "Glides" keeps the chair stationary at all times. (5 per set)


CAS-RUB - "Rubber casters" are designed for concrete and other hard surfaces. (5 per set)





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Model EF74
Manufacturer Office Master Chairs
Part Number EF74
Seat Height 17" - 22"
Base Diameter 26"
Weight Capacity 300 lbs