$132 for 16 in chair; $132 to $183 by size (Therafin)
Drop Seat Insert
Solid seat inserts. Half-inch birch plywood drop seat with pre-drilled holes and T-nuts for building a lowered solid seat.
Therafin products
Last updated: 5 October 2026 · Total: 5 products
Therafin has 5 products in the Mobility Atlas catalog, in Parts & Accessories. Maker country as recorded in the catalog: USA. 5 of them carry a guide price; the rest are quoted on request.
5 products from Therafin
$60 per pair (Therafin)
Toe Straps
Heel loops and straps. Pair of one-inch hook-and-loop straps that fasten to the footplate and wrap over the front of the shoe.
$106 small to large, $193 X-large, $207 2X-large (Therafin)
Calf Panel, Premium
Calf supports. One-piece neoprene calf panel that wraps onto the footrests with hook-and-loop closures.
$272 with pad; $203 hardware without pad (Therafin)
Amputee Support with Pad
Amputee supports. Swing-away residual limb support with a contoured urethane pad that mounts on the footrest hanger.
$251.00 (therafin.com)
18W x 16D Black Tray with EZ Lock Clamps (T31101A)
Trays. Black laminate lap tray, 18 by 16 inches, with pre-installed EZ Lock clamps that grip the armrests.
About Therafin
Therafin Corporation is a family-owned and operated company founded in 1968 by Gilbert "Gibb" Fink, an occupational therapist. According to its own history page, it is based in Frankfort, Illinois, where it manufactures seating and positioning products using CNC routers and hand finishing. Its range covers wheelchair trays and seating parts, positioning accessories such as foot supports and harnesses, transfer boards, therapy equipment and aids for independent living.
The catalog lists five Therafin items across seat cushions, footrests, armrests and side guards, and everyday accessories. Examples are the Drop Seat Insert, Toe Straps, the Premium Calf Panel, the Amputee Support with Pad and a black lap tray with EZ Lock clamps. Many of these parts are sized to the chair, so have the seat width, seat depth and frame tube diameter ready when asking for a quote, and confirm the part number, since several items come in more than one size.
Known for
- Wheelchair trays
- Seating and positioning accessories
- Transfer boards
- Manufacturing in Frankfort, Illinois
- Family-owned since 1968
Written from the maker's own pages and public references, read on 5 October 2026. Mobility Atlas is an independent catalog and is not the maker's official dealer.