The new 220RLP Series will mount and operate in the same manner as the original 110 Series. The 220RLP features simplified pilot lighting and easy-to-adjust gas pressure regulator. The 220 Series Water Heater Uni-Kits® are designed for universal replacement applications. All models feature built-in, non-cycling Energy Cut-Off (ECO) system to shut off all gas to the water heater in case of excessive water temperatures. If an ECO has detected an over-temperature condition and has opened, the control will not function and a new replacement will be required. All domestic models have a 160°F temperature high stop. All commercial models have a 180°F temperature high stop. All models have a 5-1/2" sensing element and vary by shank length. BTU Capacity: 1/2" x 1/2" models - 100,000 BTU/LP; 1/2" x 3/8" models - 85,000 BTU/LP. Replacement safety magnets not available.Made in the USA.