4WG means 4-pass Wet-back fire tube Boiler with Gun Burner in Commercial




Similar to 4WG

ACM - Asbestos Contaminated Material
ACM - Air Conditioning Motor
ACM - All China Made
ACMV - Air Conditioning Mechanical Ventilation
ACMV - Assist Controlled Mechanical Ventilation
ACORN - Associations Of Communities Organized For Reform Now
ACOS - Adjustable Coil Over Spacer

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