R-438A (MO99) – 25 lb Cylinder | R-22 Replacement | Virgin Gas

No Oil Change. No Valve Adjustments. No Downtime.

When speed and system compatibility matter most, R-438A (MO99) delivers. Engineered as one of the most versatile R-22 replacements available, it closely matches R-22 pressure-temperature characteristics while offering unmatched oil compatibility. It’s the true “repair-and-go” solution for residential, commercial, and industrial systems.

Why R-438A (MO99) Is the Technician’s Choice

⚡ Rapid Retrofit Performance
Designed as a near drop-in replacement for R-22. Works with existing expansion valves (TXVs) and most system components—minimizing downtime and eliminating complex modifications.

🛢️ Full Oil Compatibility
Compatible with Mineral Oil (MO), Alkylbenzene (AB), and POE oils. No costly oil change or system flush required.

💎 100% Virgin, AHRI-700 Certified Purity
Factory-sealed, brand-new refrigerant that meets or exceeds AHRI-700 standards. No reclaimed gas. No performance compromises.

❄️ Versatile Across Applications
Ideal for residential air conditioning, rooftop units, DX chillers, supermarket systems, and food service refrigeration. A dependable, all-purpose retrofit solution.

🌍 Safe & Compliant
Non-ozone depleting HFC with an A1 safety classification (non-flammable, non-toxic), helping maintain regulatory compliance.

Technical Specifications

• Net Weight: 25 lbs (11.3 kg)

• Common Brand Name: MO99™

• Replaces: R-22, R-402A, R-402B, R-407C

• Safety Classification: A1

• Oil Compatibility: MO, AB, POE

Premium Service & Quality Assurance

🚚 Free Ground Shipping
Fast, secure delivery directly to your shop or job site.

🔒 Factory-Sealed Cylinder
Each 25 lb cylinder is pressure-tested and secured with a tamper-evident seal for guaranteed integrity.

🛠️ Professional-Grade Reliability
Trusted by HVAC technicians who demand consistent performance and dependable cooling capacity.