Product Description Detailed Specs Downloads Reviews/Questions Product Description Honeywell Accessory - 1-974016-021 Detailed Specs null null null null null null null null null null MFG Part Number 1-974016-021 Product Type Accessory Downloads Warranties Warranties Reviews/Questions The Honeywell 1-974016-021 is also known as HON -1974016021 or 1974016021