Compatibility and size: Our dual valve fits most American toilets. The diameter for the Tvalve that connects to your toilet tank or supply line is about 20 mm (0.82 inch). Please confirm the size of your toilet sprayer before . Easy to use: Switch between rain shower, handheld shower, or tub spout with a simple knob turn. Only one output can be used at a time. Space saving and versatility: The compact design occupies minimal space, making it suitable for different settings and layouts. Easy installation: Typically under 10 minutes with minimal tools. A handheld sprayer enables cleansing and provides a clean, hygienic bathroom environment with the touch of a button. Unique design: Sleek matte finish for a fashionable yet easytomaintain look. Dual control functionality supports precise flow control. Use scenarios: hygiene: Use the handheld sprayer for convenient cleansing after toilet use. Bathing and washing: Switch to rain shower or tub spout for quick rinses or body washing in a compact space. Flexible setup for small bathrooms, apartments, RVs, or guest bathrooms where space and fixtures vary.