2013 Hot Spring Sovereign Model II is indicated by the letter in the serial number. for example. Serial Number  II-3R2015 the serial number would read II is model  3 third quarter R year(2013) and 2015 is the unit number made. Specifications Dimensions: 6'8" x 7'9" x 33" (2.03 m x 2.36 m x 0.84 m) Water Capacity: ..
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