Fitment: Suitable for replacement of HVAC circuit control boards. Replaces part number: B18099-13, B18099-13S, 1012-933D, 1012-83-9335B, B18099-13S and B1809913S. Material: This circuit control board is made of sturdy plastic material, ensuring durability and longevity. Advantages: Easy to replace, with a plug-and-play installation interface. Package included: 1*Connectors. This product contain instructions.