Old ro units/parts laying around? Need o-ring.

[lastlight]

Anyone in Calgary with an old unit they don't use? I don't need anything except the 4 or 5" across-ish o-ring that sites between the base of the unit and the housing that holds the filters and threads on. Haven't had luck finding a place to buy one yet. Frustrating when a part worth $2 maybe is keeping me from running DI resin.

I can pay top dollar (like $5) and even add you to my friends list (worth $0)