null

Call Toll Free 1-833-386-9248 for accredited gas questions.

  • 221 Liter-Carbon Monoxide 50 ppm/ Carbon Dioxide 5,000 ppm/ Methane 2.5% (50% LEL)/ Oxygen 20.9%/ Nitrogen

    • Carbon Monoxide (CO) 50 PPM / Carbon Dioxide (CO₂) 5,000 PPM / Methane (CH₄) 2.5% (50% LEL) / Oxygen (O₂) 20.9% / Nitrogen BAL 221L 250 PSI Calibration Gas – Custom Mix

    E-Gas Depot

    $255.00
    (No reviews yet) Write a Review
    SKU:
    49-0600-221L
    Availability:
    10 days + shipping time
    Weight:
    100.80 Ounces
    Width:
    9.00 (in)
    Height:
    16.25 (in)
    Depth:
    9.00 (in)
    Size:
    221LS
    Gas Composition:
    CO / CO2 / CH4 / O2
    Cylinder Specification:
    CGA-165
    Cylinder Material:
    Steel
    Gas Reactivity:
    Non-Reactive
    Cylinder Pressure:
    250 PSI
    Carbon Monoxide (CO) Concentration:
    50 PPM
    Methane (CH₄) Concentration:
    2.5% (50% LEL)
    Oxygen (O₂) Concentration:
    20.9%
    Adding to cart… category.add_cart_announcement

    Product Description

    221L 4-Gas Calibration Gas for CO, Low-Level CO₂, CH₄ (LEL), and O₂ Detection

    This 221L calibration gas cylinder is designed for calibration of detectors measuring Carbon Monoxide (CO) 50 PPM, Carbon Dioxide (CO₂) 5,000 PPM, Methane (CH₄) 2.5% (50% LEL), and Oxygen (O₂) 20.9% balanced in Nitrogen. The low-level CO₂ concentration supports indoor air quality (IAQ) calibration and continuous monitoring validation.

    221L Calibration Gas Cylinder Specifications – CGA-165 Disposable

    • 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

    Applications for Extended IAQ and Multi-Gas Calibration

    • Indoor air quality (IAQ) monitoring system calibration
    • Multi-gas detector calibration across multiple devices
    • Low-level CO₂ monitoring validation in commercial environments
    • Methane LEL sensor verification
    • Carbon monoxide exposure calibration programs

    Why This 221L Cylinder is Built for High-Usage Environments

    The 221L format is ideal for operations that require longer calibration intervals, fewer cylinder changes, and reduced downtime. It supports multi-device calibration workflows without frequent replacement.

    Custom Calibration Gas Solutions

    We provide custom calibration gas mixtures, alternate CO₂ concentrations, and cylinder configurations tailored to your detectors and operational requirements.

    Other Details

    Warranty 48 months

    Product Videos

    Custom Field

    Size 221LS
    Gas Composition CO / CO2 / CH4 / O2
    Cylinder Specification CGA-165
    Cylinder Material Steel
    Gas Reactivity Non-Reactive
    Cylinder Pressure 250 PSI
    Carbon Monoxide (CO) Concentration 50 PPM
    Methane (CH₄) Concentration 2.5% (50% LEL)
    Oxygen (O₂) Concentration 20.9%

    Product Reviews

    Write a Review