Allegro 9911-20 Replacement Tyvek Hood Assembly SCBA RESPIRATORS & FILTERS After successful calibration

After successful calibration

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Isobutylene is the standard calibration gas used for RAE Systems PID instruments

Allegro 9911-20 Replacement Tyvek Hood Assembly SCBA RESPIRATORS & FILTERS After successful calibrationNote: This item is Made to Order, cannot be exchanged and is non returnable. The Allegro series of Maintenance Free Tyvek hood assemblies have been very popular with auto body shops and metal finishing operations. This inexpensive replacement hood makes having a fresh, clean hood an easy option. Really the only element kept from the original hood assembly is the low pressure flow adapter, basically a connector and clamp. Replacement hood for the