B-R337A-ENC 333,000 BTUs Low NOx Pool and Spa Digital Heater - Natural Gas - Curpo-Nickel - Salt Water - ASME Certified safety-cover-type_Mesh - Standard This is done by using

This is done by using the SureCheck comparator

1 HP Up-Rated Pumps

and EQ1500

This is a replacement Raypak High Limit Switch

B-R337A-ENC 333,000 BTUs Low NOx Pool and Spa Digital Heater - Natural Gas - Curpo-Nickel - Salt Water - ASME Certified safety-cover-type_Mesh - Standard This is done by usingThis Raypak B R337A ENC Digital Low NOx Pool and Spa Heater is 333,000 BTUs, is fueled by natural gas, and features bronze headers, Cupro Nickel fin tube heat exchangers, and is ASME certified. Outdoor hoods come standard with these units. These ASME heaters are salt water friendly and are for residential or commercial installations up to 5,000 feet. Raypak's Low Emissions units are Low NOx certified. The air fuel mixture is maintained by a gas valve