Are these dual showerheads easy to install without a plumber?

Combo heads that thread onto your existing shower arm (like the Moen, BRIGHT SHOWERS, INAVAMZ and MakeFit picks) are generally tool-light DIY jobs requiring only plumber's tape. Full systems such as the Gabrylly require accessing the wall valve and are a meaningfully bigger install. Buyers who want a quick swap should choose an arm-mounted combo over a complete system.