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Tall-Back Ergonomic Support at a Value Price Point

The Office Master Paramount Value Series PT78 is a tall-back ergonomic task chair that delivers professional-grade adjustability — adjustable lumbar support, seat depth, seat height, and armrests — with the added upper back coverage of a taller backrest, at a price accessible for home offices, small businesses, and multi-workstation organizations.

For users who need more comprehensive back support than a mid-back chair provides, the PT78 is the practical tall-back option in the Paramount Value Series.

Key Features & Benefits

• Tall back design — Provides upper back and shoulder coverage beyond standard mid-back chairs; ideal for taller users or those who want more comprehensive back support
• Adjustable lumbar support — Customizable lower back positioning to maintain proper spinal alignment during extended sitting
• Seat depth adjustment — Accommodates different leg lengths to ensure proper thigh support without pressure behind the knees
• Pneumatic seat height adjustment — Smooth tool-free adjustment for optimal desk and monitor alignment
• Height-adjustable armrests — Reduces shoulder and neck strain during extended work sessions (optional KR-200 armrests available)
• Tilt mechanism — Back angle adjustment for personalized recline positioning
• Contoured back support — Promotes natural spinal curvature to reduce lower back fatigue
• Cushioned seat — Comfortable support through extended sitting sessions
• Smooth-rolling casters — Suitable for carpet or hard floor surfaces
• 250 lb weight capacity
• Manufacturer's limited warranty included

Technical Specifications

• Model: Office Master Paramount Value Series PT78
• SKU: PT-78, Grade 1
• Back Style: Tall back, contoured
• Weight Capacity: 250 lbs
• Seat Height: Pneumatic adjustment
• Seat Depth: Adjustable
• Lumbar: Adjustable
• Armrests: Height-adjustable (optional KR-200 armrests)
• Recline: Tilt mechanism
• Casters: Smooth-rolling (carpet or hard floor)
• Warranty: Manufacturer's limited warranty
• Manufacturer: Office Master

⚠️ Made-to-Order: Each chair is made-to-order based on your selections to ensure the best fit and performance. Because of this, orders are final—but we're here to help you get it right.

Ideal For

• Taller users who need upper back coverage beyond what mid-back chairs provide
• Home office professionals who want tall-back ergonomic support at an accessible price
• Small businesses and startups outfitting multiple workstations within budget
• Anyone who has found mid-back chairs don't provide enough back coverage
• Standard users (up to 250 lbs) stepping up from a basic office chair

Frequently Asked Questions

What is the difference between the PT78, PTYM, and PT74?

All three are part of the Paramount Value Series with similar ergonomic adjustment platforms. The PT78 is the tall-back version for users who need additional upper back and shoulder coverage. The PTYM is the mid-back model for standard-height users. The PT74 is the low-back model for users who prefer minimal back contact or have specific postural needs. Our specialists can help you identify which is right for your body.

What armrest options are available?

The PT78 is available with no armrests or with KR-200 height-adjustable armrests for proper shoulder and elbow positioning.

Is this chair suitable for users with lower back pain?

The PT78's adjustable lumbar support allows you to position lower back support at your spinal curve, which is the primary factor in reducing lower back pain from prolonged sitting. For existing medical conditions, consult your healthcare provider. We offer ergonomic consulting services to help configure the chair correctly for your needs. Learn more here.

Can I try this chair before ordering?

Yes — visit our Bay Area showroom where our certified specialists can walk you through the Paramount series. We offer ergonomic consulting services in-person and virtually. Schedule a consultation.

What fabric options are available?

The PT78 is available in Grade 1 fabric. Contact us to review current color options and lead times for your configuration.

How long does delivery take?

As a made-to-order chair, lead times vary by configuration. Contact us for current estimates before placing your order.

What warranty is included?

The PT78 includes Office Master's manufacturer's limited warranty. Contact us for full warranty terms and coverage details.

How does this compare to the Discovery Back DB78?

Both are tall-back chairs from Office Master. The DB78 features the Discovery Back — a more contoured backrest design with targeted spinal support — at a higher price point. The PT78 is the value-tier tall-back option with solid ergonomic adjustability at a more accessible price. Our specialists can help you compare. Book a consultation.

Why Ask Ergo Works?

With 30+ years of ergonomic expertise, Ask Ergo Works is not a general furniture retailer — we are certified ergonomic specialists who assess your specific needs before recommending any product.

• Certified specialists — Professional ergonomic certifications and ongoing clinical training
• Professional assessment process — We evaluate your posture, work habits, and environment before recommending a chair
• Personalized recommendations — Every recommendation is specific to your body dimensions and workspace
• Enterprise & B2B experience — Volume purchasing support for corporate offices, healthcare, education, and lab environments
• Post-purchase support — Available after delivery to assist with setup, adjustments, and ongoing ergonomic guidance

Not sure which Paramount model is right for you? We offer ergonomic consulting services to help you make the right call. Learn more and book a consultation.