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Eccotemp - Water Heater Parts & Accessories; Type: Venting Kit; For Use With: Indoor Water Heaters; Contents: 1 x 4″ Rain cap; 1 x 4″ Top support/Storm collar; 1 x 4″ Condensation
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Noritz Tankless Water Heater Vent Rain Cap, Single Wall, 4 In. Diameter, Stainless Steel - Walmart.com
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Noritz Part # PRC-1 - Noritz Plastic Rain Cap For Tankless Water Heater 2 In., 3 In., And 4 In. Pvc Vent Systems - Water Heater Accessories - Home Depot Pro
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