SPRE ResproUpgrdCty/Spt>TchnLG

Taxes incluses.

A kit to upgrade a City, Sportsta, or Nitesight mask to Techno mask performance
Contains two Techno valves and one Techno gold filter
Also useful as a spare sub-assembly, to allow a mask in daily use to have the filter swapped over occasionally to allow it to dry out, which will extend its life
Product is non-returnable for hygiene reasons