This Listing is for ONE. BRAND NEW, IN ORIGINAL PACKAGING (when applicable). Jandy COMMERCIAL Hi-E2 Natural Gas 350,000 BTU Heater – ASME Certified – EHE350NC. The Jandy Hi-E2 heater is a simple to use, powerfully engineered workhorse. This ultra efficient, low-maintenance heater is the perfect choice when considering economic operation or an extended swimming season. Dual thermostat controls make this an excellent solution for pool and spa combination’s. ASME Certified heaters are designed primarily for commercial properties such as apartments, condos, hotels, motels, schools, parks, community and high-end private pools. 95% efficiency makes the Hi-E2 the best heater available for the price! Exceeds environmental standards Hi-E2s NOx emissions are the lowest in the industry. Compact design fits almost anywhere. Weather independentmaintains ideal water temperature 365 days a year. Indoor or out, new construction or retrofit, the Hi-E2 heater is ideal for both residential and commercial applications. Hot surface ignition provides quick start-up. Winter, spring, summer or fall, Hi-E2 delivers more heat while significantly reducing your operating costs. Self-cleaning ignition, automatic venting and a high velocity heat exchanger work together to provide reliability and safety. Sealed combustion, bronze headers, PVC venting, ASME Certified. 23-1/2″ Length X 31-7/8″ Width X 34-1/16 Height. It’s the cheapest here and you will get it the fastest from me! Please DO NOT assume this item will come with anything that is not described nor shown in photos. Please look carefully at ALL photos before purchasing. We are more than happy to answer any and all questions you may have.