MODEL: 63518-N77A1 /63618-N77A3/ 53518-N77B1
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1.4. Product Structure and Technical Parameters
A. Product dimension (The appearance is just for reference. It is
subjected to the real product.)
Remove the flow meter from N77A3, it will be N77A1. If block the
drain line connector of N77A3, it will be N77B.