Overview Reviews Similar Products Product Description Caldera Spas Air Control Piston (2006 To Current) Used On Caldera Utopia, Paradise, Aquatic Melodies, Highland And C Series Spas. Location: SBR4B17 Product Videos Custom Field Product Reviews Find Similar Products by Category Recommended Quick view Caldera Spas Air Control Lever (2006 To 2008) - 73805 $12.87 $3.95 Add to Cart Quick view Caldera Spas Air Control Valve (2006 To Current) - 73919 $13.95 Add to Cart