No wholesaler shall sell to any hotel licensee, and no hotel licensee shall purchase, any container exceeding one-half gallon of liquor or more than 15 gallons of wine, or any container of less than 25 ounces of liquor or six ounces of wine, except that containers of liquor containing two ounces or less may be sold to and purchased by hotel licensees exclusively for delivery in the furnishing of room service.
N.Y. Comp. Codes R. & Regs. Tit. 9 § 93.3