DESCRIPTION
KD Navien® O-Ring, For Use With: CR/CC Series Condensing Water Heater, CH/CH-ASME Series Condensing Gas Combination Boiler, NPE Series Condensing Gas Tankless Water Heater, NCB/NCB-ASME Series Condensing Gas Combination Boiler, NR/NP Series Condensing Water Heater and NHB55 Series Condensing Gas Boiler, EPDM, Import
