Calibration gas,
direct from the lab.

NIST-traceable. 28,000 part numbers across 70+ gases. Ships in 48 hours from our Florida facility — no distributor between us.

Cross-Reference Search

Find your Trigas USA equivalent — search by OEM part number, Gasco/WSM number, or gas components

Try: MSA 10153802 BW CG-Q34-4 Draeger 34L-421 CO H2S
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OEM cross-references from 14 brands · 1,516 equivalencies
28K+
Part Numbers
48hr
Ships Nationwide
±1%
Accuracy
14
OEM Brands
💲
Wholesale Pricing
Direct from manufacturer
🚛
Ships in 48 Hours
HazMat compliant nationwide
📋
CoA Included
Certificate of Analysis every cylinder
🔄
Direct Drop-In Replacement
Compatible with all OEM part numbers
Product Categories

The Right Gas for
Every Application.

28,000+ part numbers across 5 categories. Steel and aluminum cylinders in 8 sizes.

⬡

Non-Reactive Mixtures

LEL monitoring, CO detection, O₂ depletion, portable 4-gas detectors.

Steel & Aluminum
◉

Pure Gases

N₂, O₂, CH₄, Ar, H₂, He — span gas, zero gas, specialty applications.

Steel & Aluminum
⚠

Reactive — H₂S / SO₂

H₂S, SO₂, NH₃, NO, NO₂ for wastewater, chemical plants, refineries.

Aluminum Only
☢

High Reactives

Cl₂, HCl, HCN, PH₃, SiH₄ — specialty industrial and semiconductor.

Aluminum Only
◈

Quad Gas Mixtures

CO + LEL + H₂S + O₂ — confined space, fire brigades, safety audits.

Best Sellers
⚙

Regulators & Kits

C-10, CGA-600, demand-flow regulators, tubing, calibration kits.

Accessories
Browse by Gas

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Click any gas to see concentrations and pricing.

Carbon Monoxide
CO
Hydrogen Sulfide
H₂S
Methane
CH₄
Oxygen
O₂
Ammonia
NH₃
Sulfur Dioxide
SO₂
Nitrogen Dioxide
NO₂
Nitric Oxide
NO
Chlorine
Cl₂
Hydrogen Cyanide
HCN
Phosphine
PH₃
Carbon Dioxide
CO₂
Propane
C₃H₈
Pentane
C₅H₁₂
Hydrogen
H₂
Nitrogen
N₂
Isobutylene
C₄H₈
Zero Air
20.9% O₂
View all 70+ gases →
Available Sizes

8 Cylinder Sizes.

From bump test to fixed installations.

Trigas USA Calibration Gas Cylinders
▪ Steel — Non-Reactive & Pure
17L
0.60 SCF
Bump test
34L
1.20 SCF
Field cal
103L
3.60 SCF
Fixed systems
▪ Aluminum — All Gas Types
34L
1.20 SCF
Portable
58L
2.33 SCF
Extended
105L
4.00 SCF
Fleet
116L
4.00 SCF
High vol
300L
5.00 SCF
Fixed
OEM Cross-Reference

Replace Any Brand.

Same gas. Same specs. Direct compatibility.

G
GASCO
Same part # — direct match
CG
Calgaz
Full cross-reference
M
MSA
All models mapped
BW
BW Technologies
Honeywell BW equiv.
IS
Industrial Scientific
iNet & Ventis
R
RAE Systems
All RAE part #
D
Draeger
Draeger equivalents
RK
RKI Instruments
All RKI series
P
Portagas
Complete cross-ref
H
Honeywell Analytics
All Honeywell
C
Crowcon
UK brand equiv.
S
Scott / Norlab
Legacy equiv.

Already know your part #? Search it directly — our numbering matches industry standard. Example: 34LS-161-2.5 maps directly to Trigas USA 34LS-161-2.5.

Direct from Manufacturer

Pay for the Gas.
Not the Markup.

NIST-traceable calibration gas direct from our USA facility. Same concentrations. Same accuracy. Same compatibility. Ships in 48 hours.

Browse Catalog → Request Custom Quote →
How It Works

Ordering is Simple.

1

Find Your Gas

Search by gas or part number.

2

Add to Cart

Select size & quantity. No minimums.

3

Checkout

Card or Net-30 terms.

4

Fast Delivery

Ships in 48hrs. CoA included.

Industries

Gas for Your Industry.

🛢️
Oil & Gas
Rigs, refineries, pipelines, LNG.
H₂SLELO₂4-Gas
🦺
Industrial Safety
Confined space, plant turnarounds.
4-GasCOH₂S
🚒
Fire / Haz-Mat
CO detectors, Haz-Mat response.
COHCNCl₂
🌿
Environmental
Air quality, stack emissions.
SO₂NONO₂
⛏️
Mining
Underground atmosphere monitoring.
COCH₄O₂
🧪
Chemical Processing
Reactor monitoring, toxic gas.
Cl₂NH₃PH₃
⚡
Power & Utilities
CEMS calibration, substation safety.
COSO₂NO
⚓
Marine & Offshore
Vessel confined space, cargo.
4-GasH₂SO₂
🏥
Hospital / Medical
Blood gas analyzers, lab verification.
CO₂O₂N₂
💧
Water / Wastewater
Cl₂ monitoring, sewer H₂S.
Cl₂H₂SNH₃
Custom & Bulk

Need a Custom Mix?

Tell us what you need — we'll respond within one business day with pricing and specs.

1
Custom Blends

Any gas, any concentration. Built to spec.

2
Volume Discounts

10+ cylinders? Bulk pricing available.

3
CoA Included

Certificate of Analysis at no extra cost.

4
Fast Turnaround

Standard: 48hrs. Custom: 5–7 days.

Request a Quote

We respond within one business day.

Questions? Call (305) 770-1234 or email sales@trigas-usa.com

58L-421 — 58L Aluminum — Trigas USA calibration gas cylinder
  • 58L-421 — 58L Aluminum — Trigas USA calibration gas cylinder
4-Gas Calibration Mix 58L Aluminum - 100 ppm CO, 25 ppm H2S, 50% LEL CH4, 18% O2

4-Gas Calibration Mix 58L Aluminum - 100 ppm CO, 25 ppm H2S, 50% LEL CH4, 18% O2
$150.00
$150.00
Shipping calculated at checkout.
Cylinder Size58L Aluminum