
Referred to as an adapter. You are not. These are regular 1234yf hose ends. If you don't have 1234yf hoses they won't fit. I bought these because they are described as converting 134a hoses to 1234yf fittings. They don't. If you have these hoses, then you already have them. I don't see anyone needing them unless someone lost a fitting from a 1234yf hose set.

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