Precision you can certify.
The calibration gases you can trust.
Three ways to get the exact cylinder.
Build your mix
Add components & concentrations — we match the exact part.
Cross-reference
Have an OEM part #? Get the Trigas equivalent.
Browse by gas
Pick from 70+ gases.
Better Gas.
Better Price.
NIST-traceable calibration gas, direct from the manufacturer. 28,000 part numbers across 70+ gases, shipped in 48 hours.
Pay for the gas, not the markup.
NIST-traceable calibration gas that ships directly from the manufacturer — same specs as the OEM, without the distributor margin.
Wholesale pricing
Direct from the manufacturer — no distributor between you and the lab.
Ships in 48 hours
HazMat-compliant shipping nationwide, in two business days.
CoA included
A Certificate of Analysis with every cylinder, at no extra cost.
Direct drop-in replacement
Compatible with all OEM part numbers — same gas, same fit.
The right gas for every application.
Eight cylinder sizes.
Trusted in every field.
Oil & Gas
Rigs, refineries, pipelines, LNG.
Industrial Safety
Confined space, plant turnarounds.
Fire / Haz-Mat
Carbon Monoxide detectors, Haz-Mat response.
Environmental
Air quality, stack emissions.
Mining
Underground atmosphere monitoring.
Chemical Processing
Reactor monitoring, toxic gas.
Power & Utilities
CEMS calibration, substation safety.
Marine & Offshore
Vessel confined space, cargo.
Water / Wastewater
Chlorine monitoring, sewer Hydrogen Sulfide.
Need a custom mix?
Tell us the components and concentrations — we build to spec, with a Certificate of Analysis and volume pricing on 10+ cylinders. We respond within one business day.