I have F3 ad have used two after market backs and they did allow for it when ordering. Very happy with chair.
Permobil back. Love it.
any issues with the headrest adaptor? For instance, the Invacare matrix back as a maximum height of 20 inches, but I need about 24. However, the back does not start at the seat pan and that gap is added to the back height to get a maximum height off of the seat pan.
I need a lower back and my DME rep told me there will be too much leverage on the headrest attachment point. Permobil said they haven't heard of any problems if you do not have extensor tone/spasticity in the neck and upper back. They do sell a longer headrest arm.
Haven't had any problems. It seems like it could be pretty long.
That is really low. Mine isn't that low.
does your aftermarket back come all the way down to the seat pan or is there a gap?
My therapists are telling me I cannot have a lower back.
The J3 has its own headrest hardware.
Is the Permobil link headrest meant to be used to afford a lower back it still provides head support while in full tilt and recline?