![PFEDK Rn Diagnostic Tool Kit PFEDK Rn Diagnostic Tool Kit](https://www.radondetect.ca/images/P/PFEDK_1.jpg)
Pressure Field Extension Diagnostic Kit, or PFEDK, as the name implies is a tool that can help radon mitigators accurately sizing any sub-slab depressurization application up to 4.4” Static. No more guessing or “poking and hoping” that the past experience would work. No returns on this item