Plumbing Tee Valve 3/8" to 1/2" adapters

Tee valve adapters with 3/8" threaded compression to 1/2" pipe threads.    1/2" threads on a shut off valve are quite rare.  Only purchase these if the 3/8" connections on the tee valve are too small.     The 1/2" threads can be pipe or compression.  Send me a photo if you want help identifying them.  The compression threads are fine, like the 3/8" compression threads and they measure just under 5/8" in diameter.     1/2" pipe threads are coarse and measure just over 3/4" in diameter.   Send a photo if you want help determining the connection size of your shut off valve.   Tee valve shown not included.