Navien Tube (50L) 20006686A , OEM Part
SILICON Ø7*Ø4*50L Black
(Old Part Number BH2202023A) For ALL Models CR/CC/NR/NP/CH-180)
CCCC180CC-180CC-210CC210CC-240CC240CHCH180CH180-ASMECH180ASMECH-180 CRCR180CR-180CR180ACR-180ACR210CR-210CR210ACR-210ACR240CR240ACR-240CR-240ANPNP180NP240NP240ANP-240NP-240A
NRNR180NR-180NR180ANR-180ANR210NR-210NR210ANR-210ANR240NR240ANR-240NR-240A