Product Description
221L High-Capacity Disposable 4-Gas Calibration Gas for CO, % CO₂ (2.0%), CH₄ (LEL), and O₂
This 221L disposable calibration gas cylinder delivers a stable mixture of Carbon Monoxide (CO) 25 PPM, Carbon Dioxide (CO₂) 2.0%, Methane (CH₄) 2.5% (50% LEL), and Oxygen (O₂) 21.0% balanced in Nitrogen.
The 2.0% CO₂ concentration (20,000 ppm) supports industrial calibration environments, confined space compliance, and higher-range CO₂ sensor validation.
221L Disposable Cylinder Specifications – CGA-165 Steel
- Cylinder Size: 221L
- Cylinder Pressure: 250 PSI
- Cylinder Volume: 7.5 Cubic Feet
- Valve Type: CGA-165
- Cylinder Material: Steel
- Cylinder Type: Disposable
- Gas Reactivity: Non-Reactive
- Blend Type: Custom Mix
Built for Extended Field Use & Multi-Detector Calibration
- High-frequency calibration across multiple devices
- Confined space entry and safety compliance programs
- Contractors and mobile safety teams managing multiple sites
- Reduced cylinder changeouts during long work cycles
- Ideal for crews needing longer runtime without bulk cylinder logistics
Why 221L is the “High-Volume Portable” Option
The 221L cylinder bridges the gap between small disposable cylinders and large refillable bulk tanks, offering extended usage with no return or refill handling.
2.0% CO₂ Calibration for Elevated Detection Ranges
With percentage-level CO₂ (2.0%), this gas ensures accurate detector response in higher concentration environments, beyond standard ppm calibration ranges.
Why Buyers Choose 221L Disposable Calibration Gas
- Significantly fewer replacements vs 34L and 60L cylinders
- No cylinder return or refill logistics
- Ideal for contractors, field crews, and multi-location teams
- Compatible with CGA-165 regulators
- Efficient for extended calibration schedules
Custom Calibration Gas Solutions
We offer custom gas mixtures, alternate CO₂ concentrations, and cylinder sizes tailored to your detectors and compliance requirements.
