Air supply tube with attached manifold for the dual Moto-Massage Jet DX. The DX Moto-Massage is found on the Aria, 3rd quarter forward 2005 Grandee (GG model), 2006 forward Jetsetter and 2005 Envoy, Vista and Vanguard spa models. If you have already tried running the jets with all the filters removed and the DX Jet still doesn't travel, then this part may solve the problem.
