Meir In-wall Mixer Body (Trim Kit Not Included)Description Sold separately, the MW13BDY is a key functional component of our round wall mixer trim kit. The MW13BDY in wall body is required with the purchase of a round wall mixer trim kit to create the perfect mixer solution to control both temperature and water flow for any area of your home, be it shower, kitchen, bathroom or laundry. Take the stress out of selecting the right fixtures and fittings while still managing time constraints thanks to