PVC & polyester hose, 3/8 in. diameter for Allegro low pressure supply air respiratory system.


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Return conditions : No returnable if used. For more information about our return policy, please refer to the "Orders and Returns" link on the home page

Polyvinyl chloride (PVC) hose with 3/8 “(0.95 cm) diameter reinforced with braided polyester yarn for Allegro low pressure Supplied Air Respirators. Available in 3 sizes, 25, 50 or 100 ft.

Allegro manufacturer’s code: 9100-25, 9100-50 and 9100-100.

This hose model is available in three sizes: 25 ‘(7.62m), 50’ (15.24m) or 100’ (30.48m). Select your length in the drop-down menu above. The product code and the price will appear automatically according to your choice.

This breathable air hose must be paired with other components of the Allegro low pressure Supplied Air Respirators to maintain NIOSH approval.


  • The casing of the hose is made of polyvinyl chloride (PVC) reinforced with a woven polyester yarn.
  • This hose is designed to operate in environments where temperatures can range from—20 ° F to 150 ° F (-28.8 °C to 65.5 °C).
  • The maximum operating pressure must be less than 185 psi at 70 ° F (12.76 bar at 21.1 °C).
  • One end of the hose is equipped with a quick connect OBAC adapter that is compatible with the manufacturer’s facepieces. 

This hose could be washed by hand with cold or warm water and a mild detergent and especially well rinsed the inner part of the hose to remove traces of soap.  It should also be air-dried in a sheltered spot out of direct sunlight.  

You can pair these hoses with facepieces (RA9920, RA9901, and RA9910). In addition, the compatible air sources are (RA9806, RA9821 or RA9832). You can find them at the bottom of the page under ‘Accessories’. For more information, contact our customer service.

Type of productSafety equipment
Main categoryPersonal protection
Sub categoryRespiratory protection
Sub sub categoryAllegro low pressure air-supplied respirators
Name of the productPVC & polyester Hose
Product codeRA9100
Approved/CertifiedMeets NIOSH
ManufacturerAllegro industries
Country of originUnited State of America
Choice of format3 sizes available: 25, 50 or 100 foot / 7.62, 15.24 or 30.48 m
Air supply systemLow pressure
Type of connectionQuick connect
Hose materialPolyvinyl chloride with reinforced braided polyester yarn
Hose temperature range-20°F to 150°F / -28.8°C to 65.5°C
Hose lengthDepending on selection, 25, 50 or 100 feet / 7.62, 15.24 or 30.48 m
Hose Max pressure185 psi à 70° F / 12.76 bar à 21.1°C
Hose Inner diameter3/8" / 0.375 in / 0.95 cm
Hose Outer diameter19/32" / 0.594 in / 1.5 cm
Length (in/cm)15 in / 38.1 cm for the 25 ft length
Width (in/cm)9 in / 22.8 cm for the 25 ft length
Height (in/cm)6 in / 15.2 cm for the 25 ft length
Weight (lb/kg)2 lb / 0.9 Kg for the 25 ft length
Sold byUnit
Return conditionsNo returnable if used. For more information about our return policy, please refer to the "Orders and Returns" link on the home page

RA9100 Technical sheet hoses

RA9100 Allegro low pressure hoses technical sheet.

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