The Wilder Mfg. Co. Proofer M-400NFA S-451-A20 is a commercial-grade mobile heater proofer cabinet. These large, insulated cabinets are used in bakeries and restaurants to hold food at warm temperatures or to provide a warm, humid environment for proofing dough. 
 
Features and specifications
 
The Wilder M-400NFA proofer warmer is equipped with the following features: 
Durable construction: It is built with heavy-duty tubular uprights, a reinforced base, and an extruded anodized aluminum frame for durability.
Even heat distribution: An air baffle and circulating air blower help to provide uniform heat throughout the cabinet.
Removable heating console: The heating console can be removed for easy cleaning.
Magnetic door gasket: A gasket around the door seals and secures the unit, conserving energy and helping to maintain the proper temperature and humidity.
Versatile modes: The unit features both a holding/heating mode and a proofing mode, with separate heating elements and controls.
High humidity proofing: The proofing mode uses two heating elements and a stainless steel water reservoir to provide up to 95% humidity and temperatures up to 115°F (46°C).
Heavy-duty casters: It is equipped with large polyurethane casters with brakes for easy and smooth movement. 
 
Dimensions: 28 1/2"×21×65"
Notes: Good condition-untested
Model Number: 400NFA
Serial Number: 451-A20