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82-mm Stainless-Steel Heated Filter Assembly

82-mm Stainless-Steel Heated Filter Assembly

The Apex Instruments Heated Stainless Filter Assembly (SFA-82H) is for sampling particulates from space-limited industrial sources.


Our 82mm heated filter assembly has undergone a recent design change that slightly reduced the overall weight.

The filter assembly has a two-piece threaded clamping ring with an integral 300-watt ring heater. A Viton® O-ring seals the 82.6 mm filter and prevents sample bypass. It has a stainless-steel inlet, outlet and a PTFE filter support screen (GA-3T). The inlet plate comes with a 5/8″ tube union for swaging directly to a plain probe liner. The outlet plate has a 3/8″ female NPT connection and a male 3/8″ full-flow quick connect. The mating female quick connects with the thermocouple, which is supplied with the unheated sample line (USL--QST) or SFA-82-QCF6, may be ordered separately. There is an insulated blanket supplied with each unit. An unheated version is also available without the integral heater and blanket.


  • Heated 82 mm stainless-steel filter assembly
  • Inlet: 5/8″ tube union
  • Outlet: 3/8″ FNPT and full-flow male quick connect
  • Insulated blanket
  • 300 watts/120V