Isotemp SDF00025AA RV Water Heater GasketThis is a replacement gasket for the Isotemp Basic and SPA Water Heaters. Made from high-quality rubber and is designed to replace the original gasket in your water heater. This rubber gasket provides a tight, leak-free seal to maintain the integrity of your water heating system. Easy to install and with a secure fit, this replacement gasket is the perfect solution for maintaining or repairing your Isotemp water heater.SeriesVoltageCompatible ModelsSlimUS 115v601521S000003, 602021S000003, 602521S000003European 230v601531S000003, 602031S000003, 602531S000003BasicUS 115v602421B000003, 603023B000003, 604021B000003, 604023BD00003, 605021B000003, 607521B000003European 230v602431B000003, 603031B000003, 604031B000003, 604031BD00003, 605031B000003, 607531B000003SpaUS 115v6P1523SPA0003, 6P2023SPA0003, 6P2523SPA0003, 6P3023SPA0003, 6P4023SPA0003European 230v6P1531SPA0003, 6P2031SPA0003, 6P2531SPA0003, 6P3031SPA0003, 6P40