Saddle Valves are Prohibited By Plumbing Codes

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Moderator Post (s) for this thread: > Refrigerator water supply valve by DanO on 11/23/2008

Saddle valves, regardless of type, are prohibited from use by nearly all plumbing codes.

You need a 1/2 x 1/4 x 1/2 compression fitting or a 1/2 x 1/4 x 1/2 shark bite type fitting for a proper and code compliant installation.