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Re: ready for 1234 yf refrigerant ?
Posted to HVAC Forum on 4/21/2009 27 Replies

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Hello John,

If you read the SNAP Rule, the EPA reviews and regulates substitutes for ozone-depleting substances, or "First-Generation" substitutes. The EPA does not regulate R134a Second-Generation... Login to read more.

27 Replies Received (View Replies)