Approval to renew OS028-15, provision of products and services for the replacement and maintenance of new and existing Siemens blowers on an annual contract (October 21, 2018 through October 20, 2019), with Howden Roots, LLC fka Siemens Demag Delaval Turbomachinery, Inc., base amount $125,000.00 (negotiated cost savings of approximately $5,600.00). (Staff Recommendation: Approval)