Forum Title: What size hole for my Delta Shower valve should I cut out in exterior wall?
Hello, I have a Delta R10000-PX Multichoice Universal Rough Valve Body. I'm using the Schluter Kerdi materials in my bathroom. I'm not sure whether I should use the Kerdi Seal MV for the shower valve - KMSMV235/114. It's a 4 1/2" seal. Neither Schluter or Delta would tell me what size hole to cut in the exterior wall (1/2" Kerdi board). The exterior wall in this shower stall will be tiled? What size hole should I cut in the exterior wall? Should I use this seal? Why or why not? See video at 4:39 to 4:55 mark Thanks much,
Category: Plumber Post By: TARA LOWE (St. Clair Shores, MI), 11/28/2016

There should be a plastic cover that came with the valve body which is the size the cut out should be.

- JOANNE GARRETT (Newark, CA), 09/11/2017

how big is the trim face plate? hole needs to be smaller than the trim plate

- EVELYN NGUYEN (Temecula, CA), 10/08/2017

If you don't have that plastic cover, just remember the hole must be smaller than the trim plate but you must have access to the holes to screw the trim plate into the valve body

- MARY SMITH (Wichita, KS), 10/10/2017

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