Schema.org Vocabulary › Property: merchantReturnDays
https://schema.org/merchantReturnDays
Specifies either a fixed return date or the number of days (from the delivery date) that a product can be returned. Used when the [[returnPolicyCategory]] property is specified as [[MerchantReturnFiniteReturnWindow]].
Domain: MerchantReturnPolicy, MerchantReturnPolicySeasonalOverride