Specifications include, but are not limited to: Turbine water meters to be furnished shall be magnetic gear drive with sealed register of the current type more specifically described in other parts of this specification. a. Except as otherwise modified or supplemented herein, AWWA Standard C701, AWWA Standard for Cold-Water Meters, Turbine-Type for Customer Service or the latest revision thereof shall govern the materials, design, manufacture, and testing of all meters furnished under this specification. b. The San Antonio Water System reserves the right to limit purchase of turbine-type meters from manufacturers and to the models specified, shown on Attachment I, latest revision, provided such meters conform to the provision contained herein. a. Meter Case The main case shall be solid with removable top design and will be manufactured of bronze. All meters must meet NSF Standard 61 Certification (internal coating will not be allowed) and carry the NSF 61 mark on the housing. The register box and register cover shall be bronze and sidewalk mounted. The size, model and arrows indication direction of flow shall be cast in raised characters on the maincase or cover. b. Serial Number The serial number of the meter shall be clearly imprinted on the outer case as well as on the box cover. c. Meter Registers The meter register shall be a "Sealed Register" type with straight reading indicator with a minimum of six numbered wheels (dials) and shall indicate in cubic feet. All digits shall be black on white background except the right two digits. The right digits shall be white numerals on black background (dials or fixed digits). There shall be a test index circle, which shall be divided into 100 equal parts, each tenth numbered. The index circle shall be located on the outer periphery of the face, equipped with a center sweep test hand. The month the register is manufactured, by year, and size or model shall be stamped or printed clearly on the register face with Arabic numerals. The register shall also have a "low flow" indicator. Registers for given manufacturer, size and like model shall be interchangeable...