GT 2006 For sale, contact number ( Phone number appears when clicking the contact button ) , contact via WhatsApp. Price is negotiable. Model and Car: It is a Mercedes fridge, model W221 (ZB Kühlbox W221), specifically designed for Mercedes S-Class cars. Technical Specifications: Operates on 12 volts DC (12V DC) with a power of 40 watts and can hold approximately 13 liters of contents. Cooling Type: Uses R134a refrigerant gas weighing 35 grams. Reference Number: The part number (Sach-Nr) is A 221 830 0060.