if you don't want to order it online, you can email marsh and they will call you and you can get a distributor in your area. hella heads around me were traveling way too far to get it through a shady hookup, and i just emailed the company and got a hook ten minutes from my house. it's manufactured by rolmark.
wait, the fucking phone number is on my can.
(618) 343-1006. it's in illinois, so i don't know for you foreign heads.
wait, swiss phone number is on the can, too.
0041 22 774 28 69. i don't know what that means, if you can get it from them or get a hookup in england, good luck.