Check the listing for details. Road & Home RVP054 Flat Sink/Shower Strainer. Color: Gray, Condition: New. Listed at 12.99 USD. Fits most standard 3-1/2 in and 4 in drain openingsOutside diameter 4-3/8 inFits 3-1/2 in diameter drain opening of sinksFits 3 in openings of mobile home stall showers1-1/2 in Threaded drain outlet to connect to tailpiece or trap Leaking drains can cause costly damage to cabinets, floors or undercarriages of your RV or mobile home. Replacing a damaged or leaking drain is critical to protecting your investment. Clogged drains are common and costly to repair. Keeping drains free from debris is essential for drain health. This flat strainer assembly installs easily in your RV or mobile home sink or shower with a 3-1/2 and 4 in. opening. Thank you for your interest in our products.If you have any questions about the item, please contact us through this website.20% restocking fee for all wrongly ordered items.If the product is DOA or damaged in delivery, we will exchange or refund the full amount of the original order.We reserve the right to exchange damaged or defective products before refund.If the product was not professionally installed or not returned in condition received, refund is subject to a restocking fee.We give a 30-day warranty from the date of delivery unless specified.Shipping is non-refundable.