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R448a Refrigerant, 5 Lb., Replacement R404a & R22 Commercial Refrigera – Frosty Freeze A/C Products Company
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R448a Refrigerant, Replacement R404a/R22 Commercial Refrigeration Appl – Frosty Freeze A/C Products Company
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What happens if I replace R404A with R448A? Is it the best substitute? Understanding Pressures - YouTube
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GASCO R448A Refrigerant Calibration Gas 100 PPM Balance Nitrogen in a 103 Liter Steel Disposable Cylinder
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