quality products. Perfect match with the product. Made of high quality materials. Easy installation and use. Stable characteristics, high reliability. Name:Toilet Water Valve Kit Installation instructions: 1. Before installing the water valve, place the float assembly in an upright position. 2. Place the O-ring on the neck of the water valve. Turn the toilet upside down. Install the water valve with two anchor screws. . 3. Stand the toilet upright and reengage the connecting rod and lever spring to the locked position. Put the mechanism cover in place and turn the toilet upside down. 4. Install four machine screws, place the toilet upright, and reinstall the seat ring and cover plate. Install a flange seal, reinstall it to the floor, and connect the water pipe. Scope of use: Applicable for RV toilet Magic IV (high and low models) Product function: The main function is to effectively control the water flow and that the water flow can be accurately regulated when using the toilet. Color:As Shown Material:ABS Package Contents: 1 Set * Toilet Water Valve Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.