Nickel chromium with steel sheathing heating element, aluminum alloy fins and 20 GA steel end cap|Accessories - TA1AW SP thermostat, rated 22 A at 120 - 277 V, TA1TPAW SP thermostat, rated 22 A at 120 - 277 V, tamper resistant version, TA2AW DP thermostat, rated 22 A at 120 - 277 V, TA2TPAW DP thermostat, rated 22 A at 120 - 277 V, tamper resistant version, HCA2415/20W 240 V load transfer switch, 20 A, HCA1215/20W 120 V load transfer switch, 20 AMP, RSA1224 120/24 V transformer relay, 25 A RSA2024 208/24V transformer relay, 25 A, RSA2424 240/24 V transformer relay, 25 A, RSA2724 277/24 V transformer relay, 22 A, RA1W 120 V duplex receptacle, DSW2W double pole disconnect switch - rated 20 A at 120 - 277 V, PR24 single pole power relay, 24 V control rated 30 A at 120 - 240 V, 23 A at 277 V, PR120 single pole power relay, 120 V control rated 30 A at 120 - 240 V, 23 A at 277 V, ICAW inside corner, RA1COMPW duplex receptacle cover only|Carton of 10, FS12 1 ft, FS24 2 ft, FS36 3 ft, FS48 4 ft filler section, FSJ2 2 in joiner strip|250 W/ft standard density|Ideal for basic, zoned primary/secondary heating|Low-profile perfect for limited wall space|High altitude baseboard heater (mounted above 7500 ft), easily installed with minimal disassembly, efficient heat dissipation - chimney fin type element designed for maximum air circulation|Instant heat at call of thermostat|Air flow is directed away from walls, steel sheathed element - heating element design combines the durability of a steel tubular heater with the excellent heat transfer characteristics of aluminum fins|Roomy junction box - large, identical, pre-wired junction boxes at each end are provided with knockouts in the rear, bottom, inside and outside junction box walls, dual and triple ratings allow 16 models to cover 40 variations of wattage and voltage|Designed for quiet operation no popping and pinging normally associated with baseboard heaters, lead wires allow quick field connection to either end of heater, continuous capillary tube safety thermal cutout protection in case of airflow blockage|Easy out knockouts at each end for convenient wiring, knockouts inside wiring compartment allow field installation of optical raceway kit from end to end, forming UL listed wireway, 29 different accessories available|UL listed for installation on wall at floor level with wall-to-wall carpeting, heater stands unsupported during installation, navajo white or northern white enamel finish retains attractive appearance and is compatible with all interior decors|Mounting hole in rear of cabinet for fast, easy installation, built-in cable clamp enables fast, easy wiring, grounding wire pigtail in both junction boxes, rounded corners, mounts flush on any floor surface, convenient wiring compartments|Maximum convection design|Durable, textured, powder coat finish retains attractive appearance with all interior decors|Convection heat minimizes air flow, reducing flow of bacteria and dust|Air flow directed away from walls to help prevent wall streaking