Through a series of misadventures, I have two sets of Cabot/AO Safety chemical canisters for a Cabot-style respirator/mask. They were supposed lost in shipping, so I got a completely new, incompatible, mask and threw away my Cabot masked and used pre-filters.

   These canisters are brand new, unopened, the good kind - organic vapor, the usual sort of chemicals for a top-quality respirator for anything not requiring a separate air supply. I have only the screw-in chemical canisters (the screw thread is about 3", the standard Cabot and many others size in the 90s). I only have the rear chemical part, not the prefilters, which normally snap on.

    If anyone wants these, PM me, and I will send them to you. They are discontinued, so hard to find, so they cost me nothing, so free +shipping.

     Brett