
This had since been discontinued. The recommended replacement part is 73307.
Watkins - Jet Part, Moto Jet DX HG 14-C - 77242
Replacement Option For: MFG #73542 Replacement cool gray colored single Moto-Massage Jet arm used from 2014 forward on Hot Spring models equipped with the Dual Moto-Massage Jet (DX).
MFG #73540 Manifold Air Supply Sold Separately