Quick view Add to Cart Operating and Service Instructions for Heywood Air Compressor, Pressure Relief and Regulating Valves Document Part Number: T.O. No 03-1-6 Number of pages: 24Part Number: T.O. No 03-1-6, Chapter 8 Part ARevision Date: 15-April-1944Description: Manufactured By: Eclipse for Type 972 Model 3 Style A Compressors, and Type 1014 & 1232 Valves MSRP: Was: Now: $17.94