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Head, neck, and lower back all sit straighter against McKesson's 20 x 19 inch foam back cushion, an ergonomic design that lessens the discomfort, pain, and injury risks common to extended sitting.
This listing covers every variant of this product (sizes: 20 x 19 Inch, 22 x 19 Inch). Choose yours from the dropdown above — the options table below shows all differences.
High-density polyurethane foam conforms to the lumbar region while a stabilizing board insert prevents sling-back wheelchair hammocking, secured by adjustable safety straps. The breathable stretch nylon cover machine washes, and four variants await in the dropdown below.
| Specification | Detail |
|---|---|
| Manufacturer | McKesson |
| Brand | McKesson |
| Application | Seat Back Cushion |
| Color | Black |
| Material | Foam |
| Quantity Per Pack | 1 |
| Manufacturer Part Number | 170-79003 |
Select your preferred option from the dropdown above. Each option matches the configuration described in this section.
| Option | SKU | Availability |
|---|---|---|
| 20 x 19 Inch — 20 W X 19 L Inch — 1 Each | 170-79003EA | In Stock |
| 20 x 19 Inch — 20 W X 19 L Inch — Case of 4 | 170-79003CS | In Stock |
| 22 x 19 Inch — 22 W X 19 L Inch — 1 Each | 170-79004EA | In Stock |
| 22 x 19 Inch — 22 W X 19 L Inch — Case of 4 | 170-79004CS | Non-Stocked (ships direct) |
Manufacturer warranty applies — verify current terms at order time. Compatible with standard accessories in this product category. Contact our support team if you have any questions about compatibility or use.

