I have a spare Snowpulse/Mammut cartridge for sale.
It is the 207 Bar Refillable Aluminium cartridge.The cartridge is completely compatible with the Removable Airbag System R.A.S. and Protection Airbag System, as well as with Snowpulse avalanche airbags from the winter season post-2010.
It is 3 seasons or so old - before Snowpulse was bought by Mammut, hence the Snowpulse branding - however the cartridge is in excellent condition and only been deployed 5-10 times, each time when deflating for travel.
I have photos that I'm willing to email if you are interested.
The cartridge retails at £160, so I'm looking for £110ono given its good condition and few uses (UK ONLY please).
Get in touch if you are interested.