Shower valve trim kits - what's the difference?

last month

We're doing a walk-in shower in place of old tub/shower, and looking to have a set-up similar to this photo, with a Moen primary shower head plus a separate Moen handheld. There will not be any other water outlet (such as rain head or body spray.) My question is, what's the difference between the two valve trim kits below and which would be best for our setup? Does one have advantages the other doesn't? I ordered the first this morning (snagged the last one in stock) and then this afternoon came across the second, which at $86 less might be all we need. I'm in definitely in over my head with this one. Help, please? (Extra credit for plain English, lol.) Thanks so much, in advance.

Voss Posi-Temp with Built-In 3 Function Transfer Valve Trim Kit


2 Function Pressure Balanced Valve Trim Only with Double Lever Handle, Integrated Diverter, Less Rough-in

New Shower Renovation · More Info

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