Xylem Bell & Gossett System Syzer Hydronics Calculator

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Country of manufacture: USA,            Date of manufacture: >= May 2016
Diameter: 20.5 cm,      Weight: approx. 69.2 gms
Materials: All plastic
Cursor: no cursor
Scales: 15 specialized
Front:
Back:
Condition: C1 (Mint but sleeve not quite mint)
Came with: Cardboard sleeve which serves as a case for the rule and on which are printed instructions

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