B294 Foot Switch Assembly Replacements for Model 300 and 533 Pipe Threader no checkout Compressible Graf Tite® high pressure seats withstand Compressible Graf Tite® high pressure seats withstand high temperatures and extend tip life In tip mix resists flashbacks for maximum efficiency Full swaging minimizes gas turbulence Concave tip end reduces backfire and resists flameout when base metal is accidentally contacted during cutting For hand and non slip hand grips Safely and quickly starts and stops the machine by depressing or releasing foot pedal Durable replacement foot switch assembly Designed for use with Ridgid® Models 300 and 535 Pipe Threading machines