Unit will have only one model# on it....manual or use&care guide may be for more than one model.
ET20PKXAN00 WHIRLPOOL Top-Mount REFRIGERATORS
ET20PKXAW00 WHIRLPOOL Top-Mount REFRIGERATORS
ET20PKXDN00 WHIRLPOOL Top-Mount REFRIGERATOR
ET20PKXDN01 WHIRLPOOL Top-Mount REFRIGERATOR
ET20PKXDN02 WHIRLPOOL Top-Mount REFRIGERATORS
ET20PKXDN03 WHIRLPOOL Top-Mount REFRIGERATORS
ET20PKXDW00 WHIRLPOOL Top-Mount REFRIGERATOR
ET20PKXDW01 WHIRLPOOL Top-Mount REFRIGERATOR
ET20PKXDW02 WHIRLPOOL Top-Mount REFRIGERATORS
ET20PKXDW03 WHIRLPOOL Top-Mount REFRIGERATORS
ET20PKXTF00 WHIRLPOOL Top-Mount REFRIGERATORS
ET20PKXTF01 WHIRLPOOL Top-Mount REFRIGERATORS
ET20PKXTG00 WHIRLPOOL Top-Mount REFRIGERATORS
ET20PKXTG01 WHIRLPOOL Top-Mount REFRIGERATORS
ET20PKXTM00 WHIRLPOOL Top-Mount REFRIGERATORS
ET20PKXTM01 WHIRLPOOL Top-Mount REFRIGERATORS
ET20PKXTN00 WHIRLPOOL Top-Mount REFRIGERATORS
ET20PKXTN01 WHIRLPOOL Top-Mount REFRIGERATORS
ET20PKXTW00 WHIRLPOOL Top-Mount REFRIGERATORS
ET20PKXTW01 WHIRLPOOL Top-Mount REFRIGERATORS
ET20PKXXN00 WHIRLPOOL Top-Mount REFRIGERATOR
ET20PKXXN01 WHIRLPOOL Top-Mount REFRIGERATOR
ET20PKXXW00 WHIRLPOOL Top-Mount REFRIGERATOR
ET20PKXXW01 WHIRLPOOL Top-Mount REFRIGERATOR
ET20PKXYG00 WHIRLPOOL Top-Mount REFRIGERATOR
ET20PKXYN00 WHIRLPOOL Top-Mount REFRIGERATOR
ET20PKXYW00 WHIRLPOOL Top-Mount REFRIGERATOR
ET20PKXYW01 WHIRLPOOL Top-Mount Refrigerators*
ET20PKXYW02 WHIRLPOOL Top-Mount Refrigerators*
ET20PKXZG00 WHIRLPOOL Top-Mount REFRIGERATOR
ET20PKXZG01 WHIRLPOOL Top-Mount REFRIGERATOR
ET20PKXZG10 WHIRLPOOL Top-Mount REFRIGERATOR
ET20PKXZN00 WHIRLPOOL Top-Mount REFRIGERATOR
ET20PKXZN01 WHIRLPOOL Top-Mount REFRIGERATOR
ET20PKXZN10 WHIRLPOOL Top-Mount REFRIGERATOR
ET20PKXZW00 WHIRLPOOL Top-Mount REFRIGERATOR
ET20PKXZW01 WHIRLPOOL Top-Mount REFRIGERATOR
ET20PKXZW10
ET20PMXDN00 WHIRLPOOL Top-Mount REFRIGERATOR
ET20PMXDN01 WHIRLPOOL Top-Mount TOP MOUNT REFRIGERATOR
ET20PMXDN02 WHIRLPOOL Top-Mount REFRIGERATORS
ET20PMXDN03 WHIRLPOOL Top-Mount REFRIGERATOR
ET20PMXDN04 WHIRLPOOL Top-Mount REFRIGERATOR
ET20PMXDW00 WHIRLPOOL Top-Mount REFRIGERATOR
ET20PMXDW01 WHIRLPOOL Top-Mount TOP MOUNT REFRIGERATOR
ET20PMXDW02 WHIRLPOOL Top-Mount REFRIGERATORS
ET20PMXDW03 WHIRLPOOL Top-Mount REFRIGERATOR
ET20PMXDW04 WHIRLPOOL Top-Mount REFRIGERATOR
It has provided seven years worry free service thus far, and I hope more to come
Most will last 10-15 years.
This link here may help as well
jeff.