On Mar 8, 11:06 pm, "Stephanie and Ed" wrote:
I have an early 1990's vintage Cobra trailer with a front hatch. The gas
spring that holds the hatch up has deteriorated, and I'd like to replace it.
I've emailed both Cobra and the German gas spring manufacturer with no
response. I can see that the length of the gas spring is critical to the
operation of the door, but I can't tell what the correct pressure is from
any markings on the device. Does anyone know of a US source for a comparable
part and what the resistance should be?

Check out Mcmaster-Carr industrial supply. They have an application
chart for their gas struts, should give you the length and pressure
for your hatch. Ron C.