2013 Hot Spring Jetsetter Model JJ is indicated by the letter in the serial number. for example. Serial Number  JJ-3R2015 the serial number would read JJ is model  3 third quarter R year(2013) and 2015 is the unit number made. Specifications Dimensions: 5'5" x 7' x 29" (1.65 m x 2.13 m x 0.74 m) Water Capacity: ..
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