We bought this last year to keep in our Cessna. We now have a pressurized plane.

It just sat in there and was never used. Still full. The picture shown is not the actual model. Ours is a bit longer as its the 4CF model and comes with two masks.

it says 20 minutes at FL250. Im assuming it would last much longer at 13, 000 or so. Comes with two masks. Just pull and O2 starts flowing.

We looked at several models and finally settled on this one. Its a very easy fill so they tell me. Ive never filled it, but any FBO should be able to top it off.

My buddy has this exact model he keeps in his 182 for the one time a year he gets that high. This is a great Emergency unit for pressurized planes also.

Should fit in most compartments. We paid over $400.00 new.