First to incorporate recessed jets, this industry first was accomplished in 1980. Dual settings enable you to adjust for a steady flow or an oscillating massage.  Combines specific massage types, from bold to gentle. Durable jets with no moving parts built to last a lifetime. Unmatched 5-Year Jet Warranty on all 980, 880 hot tubs. Sundance Spas now offer 5 different types of patented Fluidix jets with no moving parts. Sundance Spas now offer 2 different types of patented Vortex jets with no moving parts.