Gas Sampling Probe Assemblies are used for Instrumental Reference Methods. They incorporate the popular heater design from Method 5 probes so liners can be changed in seconds without disturbing the heater. The separate heater tube provides even heat distribution and isolates the electrical elements from the liner. The probe sheaths are constructed with a 2-inch stainless steel outersheath with a tube nut welded to the end for attachment to a porous filter or a bored cap. Probes are available in any length from 2-foot to 20-foot. The probes are manufactured to accommodate standard wattages or customized for hotter conditions. Add “V” to end of part number for 240 VAC.