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The 0386-1090 AH-12 air acetylene torch hose is a 12 ft, 3/16 inch inside diameter, grade R rubber hose with left-hand A fuel-gas fittings, sold as a replacement for TurboTorch style air-acetylene outfits. It is for acetylene only, so it suits soldering and brazing with a compatible handle and regulator, not propane or oxygen.
This review is based on the Amazon listing and retailer spec pages, not hands-on testing. Fitting and gas type are the two things to confirm before you buy.
AH-12 air acetylene torch hose at a glance
| Item | Detail |
|---|---|
| Part number | 0386-1090 (AH-12) |
| Length | 12 ft |
| Inside diameter | 3/16 in |
| Hose grade | Grade R rubber, single line |
| Fittings | Female left-hand A (fuel gas) fittings, 3/8-24 thread, on both ends (per retailer specs) |
| Pressure rating | Amazon summary lists 300 psi; not confirmed on retailer pages |
| Gas | Acetylene (fuel gas) only |
Retailer pages describe it as a replacement hose for TurboTorch and Sof-Flame air-acetylene outfits. Check the Amazon listing for the current details.
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How to check it fits your torch
- Handle. Retailers list it for TurboTorch G-4 style handles. Check your handle model.
- Regulator and tank. The regulator outlet must accept A-style left-hand fuel-gas fittings with 3/8-24 threads.
- Gas type. Use it with acetylene only. Do not use it with oxygen, propane or other fuel gases unless the label and torch maker say so.
- Length. 12 ft suits benches and service work. Longer runs need a longer hose, not an extension.
Safety and setup
- Leak-test every connection with soapy water, never with a flame.
- Keep acetylene at or below 15 psig. Higher pressure is unsafe, whatever the hose rating.
- Replace the hose if it is cracked, bulged, burnt, kinked or has damaged ends.
- Keep it away from hot work, sharp edges and sparks, and do not drag it over hot metal.
- Use flashback arrestors where your equipment calls for them.
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Care and storage
Coil the hose loosely without sharp bends. Store it clean and dry, away from sunlight, oil and solvents. Inspect the full length and the crimped ends before each use.
Pros and limitations
Pros
- Dedicated acetylene hose with the right left-hand fittings.
- 12 ft length is convenient for plumbing and HVAC work.
- Reinforcement sleeves cover the stress points at the ends.
Limitations
- Fit is limited to compatible A-fitting handles and regulators.
- Not for oxygen, propane or natural gas.
- The 300 psi figure is not confirmed outside the Amazon summary, and working pressure for acetylene is far lower.
Alternatives and related guides
- Master Elite oxygen acetylene hose review: a twin hose for oxy-acetylene torches
- Oxygen acetylene regulators set review: the regulator side of the setup
- How to braze HVAC copper pipe: where an air-acetylene torch earns its keep
- Oxy-acetylene pressure settings chart: safe pressure guidance
Related reviews: X-3B air acetylene torch kit review, TurboTorch X-3B review and RX WELD air acetylene torch kit review.
Frequently Asked Questions
What gas can I use with the AH-12 hose?
Retailer specs say acetylene fuel gas only. Do not use it for oxygen, propane or natural gas.
What fittings does the AH-12 have?
Retailer specs list female left-hand A fuel-gas fittings with a 3/8-24 thread on both ends. Check that your handle and regulator use the same style.
How long is the AH-12 hose?
It is a 12 ft hose with a 3/16 inch inside diameter.
When should I replace an acetylene hose?
Replace it when you see cracks, burns, bulges, soft spots or damaged ends, or if a connection leaks that tightening does not fix. A failed hose is a fire risk.
Bottom line
The AH-12 is a straightforward 12 ft replacement for compatible air-acetylene torch outfits. Confirm your fittings, use it with acetylene only, and check the hose before every job.
Check the current price on Amazon →
