Stainless Steel Rain Cap for 12L (3.2 GPM) Tankless Water Heater | Aquah Store
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 RC4 Rain cap vertical vent termination for 4" Stainless Steel vent pipe - Replacement Water Heater Heating Elements - Amazon.com
Suburban Nautilus On Demand RV Water Heater Vent Cap # 261617, 2" Wall Thickness | eBay
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
Suburban 260618 Replacement RV Water Heater Vent Cap - 2"-3"