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Hello KenPatty, the only difference between the two is the exterior finish. The WMH31017HS is a stainless steel and the WMH31017HZ is a fingerprint-resistant stainless steel.
Sorry, there was a problem. Please try again later.Fan is 300 CFM on HS and 330 CFM on HZ (HZ has stronger fan).
Sorry, there was a problem. Please try again later.The HZ is fingerprint resistant stainless steel finish. The HS is regular stainless.
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