DO YOU OWN A MARATHON WATER HEATER,LOVE THE EFFICIENCY AND LIFETIME TANK WARRANTY,BUT HATE THE COST OF THE PROPRIETARY HEATING ELEMENTS. NEW BRASS UNIVERSAL ADAPTER BUSHINGS THAT FIT RHEEM MARATHON WATER HEATERS. REPLACES EXPENSIVE RHEEM ELEMENT TO ALLOW THE USE OF A STANDARD HOT WATER HEATER ELEMENT. PACKAGE COMES WITH 2 ADAPTER BUSHINGS AND SEAL RINGS. JUST REMOVE OLD ELEMENT SCREW IN ADAPTER BUSHING AND THEN YOUR READY TO REPLACE WITH ANY HARDWARE STORE STANDARD ELEMENT. CUTS THE COST OF ELEMENT REPLACEMENT FROM 65.00 TO 20.00 ALSO STANDARD ELEMENTS ARE AVAILABLE AT YOUR LOCAL HARDWARE STORE WHERE AS THE RHEEM ELEMENT HAS TO BE ORDERED ONLINE AND CAN TAKE DAYS FOR DELIVERY. FREE SHIPPING. PP