OBA Air lines
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Laughing Gas
Joined: Oct 2003
Posts: 1,082
Likes: 93
From: VA/NH
OBA Air lines
All I'm finding are 1/4" OD plastic air lines. That and stainless or AN which seems a little overboard. Are 1/4" OD lines what everyone is using for there onboard air systems?
Hotshot
Joined: Oct 2015
Posts: 19,698
Likes: 12,822
From: Wyoming
1/4" plastic air lines are what is used for the on-board air in my toy hauler. The OEM plastic lasted 14 years before I replaced it due to leaks, but I don't know how often the air compressor was actually used before I became the third owner.
Lead Driver
Joined: May 2021
Posts: 5,842
Likes: 3,464
From: Uh oh, CA
More Turbo
Joined: Dec 2020
Posts: 618
Likes: 257
From: Stow, MA
McMaster has multiple sizes of DOT approved plastic tubing:
https://www.mcmaster.com/tubing/plas...ubing-for-air/
As well as push to connect fittings:
https://www.mcmaster.com/fittings/co...tings-for-air/
They also have less expensive Nylon and Polyurethane tubing that is not DOT approved, but I figure the approval and low temperature certifications are cheap insurance.
https://www.mcmaster.com/tubing/plas...ubing-for-air/
As well as push to connect fittings:
https://www.mcmaster.com/fittings/co...tings-for-air/
They also have less expensive Nylon and Polyurethane tubing that is not DOT approved, but I figure the approval and low temperature certifications are cheap insurance.
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