Matrx PB Back

The Invacare Matrx PB Back is a contoured wheelchair backrest designed to provide reliable positioning, trunk support, and everyday comfort for manual and power wheelchair users. With a 5″ contour depth, the PB Back offers more lateral support than a shallow contour backrest while still maintaining a practical fit for users who need moderate positioning assistance without an overly restrictive seating system.

Built with a durable, lightweight ABS shell and molded foam that wraps around the shell for added comfort and protection, the Matrx PB helps replace standard sling upholstery with a more supportive rigid backrest. Easy Set hardware allows the backrest to be adjusted for depth, angle, and rotation, helping create a more secure and personalized wheelchair seating setup.

Key Features

• 5″ Contour Depth: Provides moderate lateral trunk support for improved posture, alignment, and seated stability
• Positioning Back Design: Helps support users with moderate trunk positioning needs while improving comfort over standard sling upholstery
• Durable Lightweight ABS Shell: Rigid shell provides structured support without unnecessary bulk
• Molded Foam Comfort: Foam wraps around the shell for enhanced comfort, protection, and a more finished seating surface
• Easy Set Mounting Hardware: Allows depth, angle, and rotation adjustment for a more precise backrest setup
• Wheelchair Frame Compatibility: Hardware fits 3/4″, 7/8″, and 1″ diameter back canes, with 1-1/8″ hardware available separately
• Meshtex™ Upholstery: Standard breathable Meshtex™ fabric cover supports daily comfort and durability
• 300 lb Weight Capacity: Supports users up to 300 lbs. in standard configurations

Additional Features & Details

• Designed for manual and power wheelchair applications
• Fits chairs 1″ narrower or 1″ wider than the selected back width using included mounting pins
• 40° range of anterior/posterior angle adjustment
• Back rotation adjustment may help accommodate pelvic or trunk rotation
• Reinforcement plate included for headrest attachment
• Extended mounting pins and hardware upgrades may be available for select configurations
• Optional Visco foam upgrade available for added immersion and comfort
• Available in multiple widths and heights
• Suitable for users needing more structure than sling upholstery

Moderate Positioning Support for Daily Seating

The Matrx PB Back is designed for users who need improved trunk support and positioning in a practical, durable backrest. Its 5″ contour depth provides increased lateral contact compared to lower-profile backrests, helping improve midline orientation, seated alignment, and postural control during daily wheelchair use.

This makes the PB Back a good option for users who need more positioning than a basic backrest can provide, but who do not require the deeper contour of the Matrx PB Deep Back.

Comfort-Focused Molded Foam Design

The PB Back uses molded foam over a lightweight ABS shell to combine structure with comfort. The foam wraps around the shell, helping reduce hard-edge contact while creating a more comfortable support surface for long-term daily use.

An optional Visco foam upgrade may be available for users who need additional immersion, softness, and pressure-sensitive comfort.

Easy Set Hardware & Adjustability

The Matrx PB Back includes Easy Set mounting hardware designed for straightforward installation and adjustment. The hardware allows depth, angle, and rotation adjustment, with a 40° anterior/posterior adjustment range to help match the backrest to the user’s posture and wheelchair setup.

The included mounting pins allow the PB Back to fit chairs 1″ narrower or 1″ wider than the selected back model width, and the hardware fits common 3/4″, 7/8″, and 1″ diameter back canes.

Who This Backrest Is Best For

The Invacare Matrx PB Backrest is appropriate for users who need:

• Moderate lateral trunk support and positioning
• A 5″ contour backrest for improved seated stability
• More structure than standard sling upholstery
• Molded foam comfort over a rigid support shell
• Adjustable hardware for improved wheelchair fit
• A backrest suitable for manual or power wheelchairs

Need Help Choosing the Right Backrest?

Need help determining whether the Matrx PB Back is the right fit? Our team can assist with product guidance to help match the backrest size, contour depth, hardware style, and positioning needs to the user’s wheelchair setup.

RETURN POLICY:

• Returnable with 30% restock fee. Fee waived for Matrx® product exchanges
• Customer is responsible for return shipping. Aracent Healthcare does not provide shipping labels
• For complete terms and conditions, please review our full Return policy

WARRANTY INFORMATION:

• 2 year limited warranty on material defects and workmanship. Excludes punctures, tears, burns, and the removable outer cover. Applicable to original purchaser only
• Any abuse or intentional misuse of the product will void the warranty
• For full details, please review our Product Warranty page

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