Specifications include, but are not limited to: I. One (1) pump herein shall be a Tuthill‐brand Industrial Duty (ID) Model 600 HD Series pump. II. The pump shall be a Model 600 pump duplicate of: a. Serial Number C‐5846 and b. Assembly Number 019109300221. III. The pump shall include the Tuthill Mechanical Seal option rather than standard Packing seal. IV. The pump shall include the following characteristics that coincide with Tuthill’s Process Pump Numbering System: a. Digits 1 & 2: 01 – Industrial Duty grade b. Digits 3 & 4: 91 – 600 Model pump c. Digits 5 & 6: 09 – Ductile iron Impellor Housing, Faceplate & Impellors d. Digits 7: 03 – Flanged connections e. Digits 8: 0 – No Relief Valve f. Digits 9 & 10: 02 & 08 – Special Shaft Material and Mechanical Seal g. Digits 11 & 12: see Factory records