The Master-Bilt 12X18X8-4 is a quick ship indoor walk-in modular unit designed for efficiency and durability. Measuring 12 feet by 18 feet with a height of 8 feet 4 inches, this floorless model features NSF vinyl sealers for enhanced insulation and hygiene. Constructed with 26 gauge embossed coated steel for both the interior and exterior, it ensures long-lasting performance and easy maintenance. The self-closing door is equipped with a locking deadbolt handle for added security, making it an ideal choice for commercial refrigeration needs.