High Quality:The RV water heater replacement parts made from high quality materials.There are 125V 16A 82C ECO and 60C T-stat Assembly; The thermostat assembly is an emergency cutoff to ensure water temperature does not rise above 140 degrees Fahrenheit (about 60C). Function: By controlling the flow of electricity into the heating elements the thermostat parts assure you have calming hot water flowing from the shower. Easy to install: The RV water heater replacement part comes with installation instruction, which is convenient to install; Just place thermostat at the right cutout and ECO at the left cutout, replace spring and washer, cover with foam cover and reconnect the wires RV Water Heater Models Compatibility:Fit for GCH6-4E, GCH6-6E, GCH6-7E, GC6A-7E, GH6-6E, GH6-7E, GH6-8E, G6A-6E, G6A-7E, G6A-8E, GCH6A-7E, GCH6A-8E, GCG6A-9E, GC6AA-7E, GC6AA-8E, C6AA-9E, GCH10A-2E, GCH10A-3E, GH10-1E, G610-3E, GH610-3E, G10-2E, G10-3E, GC10-1E, GC10-2E, GH10-2E, GH10-3E, G6A-3E, GH6-3E, GH6-4E, G6A-4E, GCH6A-10E, GC6AA-10A, GC10A-4E, GCH10A-4E, GLM 21140, Mallory 9-72153, Mercruiser 45518A2, 45518A3 and 45518A1. Package includes:1 RV water heater thermostat, 1 RV water heater ECO, 1 Black foam cover,1Replaceable plastic gasket(Include instructions) RV Water Heater Models Compatibility : Fit for GCH6-4E, GCH6-6E, GCH6-7E, GC6A-7E, GH6-6E, GH6-7E, GH6-8E, G6A-6E, G6A-7E, G6A-8E, GCH6A-7E, GCH6A-8E, GCG6A-9E, GC6AA-7E, GC6AA-8E, GC6AA-9E, GCH10A-2E, GCH10A-3E, GH10-1E, G610-3E, GH610-3E, G10-2E, G10-3E, GC10-1E, GC10-2E, GH10-2E, GH10-3E, G6A-3E, GH6-3E, GH6-4E, G6A-4E, GCH6A-10E, GC6AA-10A, GC10A-4E, GCH10A-4E, GLM 21140, Mallory 9-72153, Mercruiser 45518A2, 45518A3 and 45518A1. Package includes: 1* RV water heater thermostat, 1* RV water heater ECO, 1* Black foam cover,1*Replaceable plastic gasket(Include instructions) 1. Turn Off Water heater switch 2. Remove valve from Left-hand ECO terminal-A 3. Note the position of the thermal cut-off-B 4. Remove brown incoming power wire-C from thermal cut-of 5. Remove and discard thermal cut-off-B from thermostat-F 6. Remove the air shutter D and slide the air shutter right 7. Run a flexible wire brush through the burner tube-D & E Until it is visible at the end of the burner tube 8. When you are sure the burner tube is completely clean,return the air shutter to its original position Function By controlling the flow of electricity into the heating elements the thermostat parts assure you have calming hot water flowing from the shower. _x000D_