RO membranes in Calgary?Starting to panic:(

[Powertec]

Okay we'll i am starting to panic a tad. My sps are gonna start all dieing if i don't figure out what to do..I need a ro membrane asap. And i have ordered one but i am thinking its not going to make it in time and i am gonna lose it all.Does anyone know of a store in Calgary that sells them? We were in Edmonton yesterday and no one carries one. I need a filmtec or the likes.DI i am thinking i can find but its the membrane that is the challenge.
I will make the trip up if i have a clue if they are in a store somewhere. I tried homedepot last night in hopes just maybe but nope no luck.

Any suggestions