Sloan Royal 154-3.5-4-3/4-LDIM Concealed Manual Water Closet Flushometer (3011720)

Hello, there! Thank you for posting your query here at PlumbersStock. While there is no specific measurement provided by the manufacturer regarding the required overhang to prevent splashing, there are general guidelines you can follow to minimize water splashing outside the tub. Ideally, the spout of the tub filler should extend over the center of the tub to ensure that the water flow is directed into the tub rather than outside. It's recommended to have a minimum overhang of around 1 inch from the edge of the tub to the tub filler's center body. This measurement may vary depending on the specific design of the tub filler and the dimensions of your bathtub. You may refer to this specification sheet for more information. To order this tub filler, click "Add to Cart" and fill in the required information. Have a great day!