FATHOM Back Mounted Counter Lungs (BMCL) are designed for low work of breathing (WOB) and streamlining. They feature zippers, which allow each lung to be removed for cleaning without removing the backplate. Exhale lung (with OPV) on left side for CCRs with right to left flow (Fathom, Meg, Prism Topaz, etc.)
Available with or without FATHOM Ports and T-pieces.
hyperlimits (verified owner) –
The Fathom BMCL are similar to many others on the market (i.e. Subgravity, ATS), the difference with the Fathom BMCL is the zippers which make them easier to remove for cleaning etc, the BMCL shipped without the T-pieces bulkhead which give you the option to add the T-piece of your choice.