Usage Tips:[Compatible Range]HE 90240 water heater elements, tankless for ECO 18, 24, 27, 36. water heater elements: RTEX-18, RTEX-24, RTEX-27, RTEX-36, RETEX-18, RETEX-24, RETEX-27, RETEX-36. RMTEX-36, RMTEX-27, RMTEX-18, RMTEX-24.Eemax HA018240, HA024240, HA027240, HA036240, PR018240, PR024240, PR027240, PR0362240, EEM24018, EEM24024, EEM24027, EEM24036./Drakken AHS18D, AHS27D, AH18AH24, AHS24D [Product Advantages]Our heating elements will a lot of replacement and maintenance costs for your water heater heater elements can effectively solve problems such as abnormal water pressure, low water temperature, slow water flow, long heating time and water heater not heating. [ Materials] Our tankless water heater elements are manufactured from copper, durable, with antioxidant substances, corrosion resistance and mineral accumulation resistance, higher thermal conductivity and longer life span of the heating elements used. [Easy Installation]packaged heating element with leak-proof O-ring gasket and screws, and screw-in construction for easy installation. tip: The actual object may have slight color differences Notice: product. There may be wear or differences on the surface of the actual product, which does not affect use. Material: copper colour: As shown Package Contents: 1 x Heating Elements Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.