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017708 - B-R407A-ENC 399,000 BTUs Low NOx Pool Digital Heater - Natural Gas - Copper Tubes - ASME Certified - Raypak
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Amazon.com : Hayward W3H400FDN Universal H-Series 400,000 BTU Natural Gas Pool and Spa Heater for In-Ground Pools and Spas : Patio, Lawn & Garden
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