Check the listing for details. RV Tank Sensor Monitor Panel M21 Kib Replacement Panel M21 Water Level Sensor. Condition: New. Listed at 34.95 USD. Best PricesHigh QualityFree Shipping Tank Sensor Monitor Panel M21 | KIB Replacement | Panel Only | Level Sensor If you are not 100% satisfied with your purchase, you can return the product within 30 days. If returned Items are due to the customer ordering the wrong size, style, or color, they are automatically subject to a 10% restocking fee unless otherwise noted in product description. You have precisely 30 days from the date of purchase to return an item. We believe this provides an ample amount of time to inspect, test, and validate your purchase. Returns after 30 days from the date of purchase will be handled on a case-by-case basis. It is possible to incur up to a 25% restocking fee if we choose to accept the return. This is solely the discretion of RecPro. ​​​​​​​ Free ShippingBest PricesHigh Quality Details: Overall Dimensions: 2 13/16”W x 4 ⅝"H Faceplate Dimensions: 2 ½”W x 4 ¼”H Bolt hole spacing: 2”W x 2 15/16” H (hole center to hole center) K101 “pigtail” wiring harness included 12V DC Color: White or Black Easy readout Monitor tank levels Monitor battery level Control for water pump