Description:

• No. 21 Seat is available in a serpentine spring support component or with an ergonomic substrate and formed poly cushion
• Foundation is injection molded, glass-filled polypropylene which is especially strong but not brittle and upholstered to match the seat cushion for an attractive two-piece fully upholstered seat
• No. 21 Seat passes the 600 lb. static load test and surpasses 300,000 cycles without failure in the ASTM-851-87 Test Method for Self-Rising Seat Mechanisms
• The cover utilizes drawstring construction for an unwrinkled appearance and ease of replacement
• Unique cam-driven seat hinge mechanism for consistent, maintenance-free operation
• Seat pivot is covered to prevent tampering

Interchangeability:

• Available on the Nos. 4, 8 & 12 chair platforms

Options:

• Available in full fold, 3/4 fold (standard) or 1/2 fold options
• The serpentine spring version is available with a Loge-style cushion
• Standard seat number plates are available for use with this seat
• Available with a veneer-surfaced wood panel attached with concealed fasteners