Model (Width X Height):  
Model 2512K Standard, 12 in. x 12.63 in. Model 2513K Standard, 13 in. x 13 in. Model 2514K Standard, 14 in. x 14.5 in. Model 2515K Standard, 15 in. x 16.5 in. Model 2516K Standard, 16 in. x 16.5 in. Model 2517K Standard, 17 in. x 16.5 in. Model 2518K Standard, 18 in. x 16.5 in. Model 2519K Standard, 19 in. x 16.5 in. Model 2520K Standard, 20 in. x 16.5 in. (add $44.50) Model 2514TK Tall, 14 in. x 21 in. (add $44.50) Model 2515TK Tall, 15 in. x 23 in. (add $44.50) Model 2516TK Tall, 16 in. x 23 in. (add $44.50) Model 2517TK Tall, 17 in. x 23 in. (add $44.50) Model 2518TK Tall, 18 in. x 23 in. (add $44.50) Model 2519TK Tall, 19 in. x 23 in. (add $44.50) Model 2520TK Tall, 20 in. x 23 in. (add $89.50)

J2 Back Cover:
None J2 Back Cover w/Spinal Fluid Pad (add $105.00)

Back Foam Standard Size:
None Back Foam Standard Size (add $41.00)

Back Foam Tall Size:
None Back Foam Tall Size (add $48.00)

Back Shell Standard Size:
None Back Shell Standard Size (add $169.50)

Back Shell Tall Size:
None Back Shell Tall Size (add $207.00)

AirExchange Cover Standard Size:
None AirExchange Cover Standard Size (add $41.50)

AirExchange Cover Tall Size:
None AirExchange Cover Tall Size (add $51.50)

Lumbar/Pelvic Supports:
None Lumbar/Pelvic Supports (add $12.50)

Lateral Trunk Supports:
None Lateral Trunk Supports (add $55.50)

Swing Away Lateral Trunk Supports:
None Swing Away Lateral Trunk Supports (add $197.00)