Tall Height Polyurethane Cleanroom Chair, Black, Polished Aluminum Base, Articulating Seat & Back Tilt

Durable and comfortable design ideal for use in semiconductor, bioscience, pharmaceutical, and board manufacturing|Waterfall seat aids lower body circulation Handle in backrest makes moving chair effortless Fully adjustable contoured back Easy to clean with nonslip surface ISO 4 cleanroom compliance|Pneumatic height adjustment allows easy seat height changes from 20.5" - 30.5"|Three-way seat and back height adjustment|Adjustable 18" chrome footring|The ergonomic designed chairs enhance productivity in the toughest work environments. The rugged polyurethane seat and back resists stains and damage from punctures, grease, water, and chemicals. These polyurethane chairs have a 360 swivel and pneumatic seat height. Ventilation ribs increase air circulation and comfort. The articulating seat/back tilt feature provides three-way seat and back height adjustments for increased comfort during extended sitting durations. The contoured back is fully adjustable encouraging proper spinal alignment while the convenient handle makes moving the chair effortless. The sturdy five-legged base is available in reinforced polished aluminum with mushroom glides. Pneumatic cylinder has a lifetime guarantee. Optional casters are sold separately and add an additional 1" to the chair height.