There are some distinct differences in the mechanisms and gas cylinders of the Equa chairs that can help determine which chair you have.

If the cylinder has already been removed, check out the top part of it. The Equa 1 has a small metal protruding button, and the Equa 2 is a flush button - compare with the graphic below. If the cylinder has not been removed, looking at the mechanism is an easy way to tell, too. The Equa 1 has a visible slot on the front for the key that holds the cylinder in place. The Equa 2 does not. Scroll down for visuals of each part. 

Figure it out? Great! Purchase the Equa 1 cylinder here. Or the Equa 2 cylinder here.

Compare the gas cylinders:

Purchase the Equa 1 cylinder here. Or the Equa 2 cylinder here.

Compare the mechanisms:

Purchase the Equa 1 cylinder here. Or the Equa 2 cylinder here.

Does your cylinder have a screw or spring appearance? If so, that is a super-old version, and we don't have replacements for this style.

Here are a couple photo examples of this type of cylinder for an Equa chair:

Still need help? Contact us!