Jet Face Parts
This Jet Extension is manufactured by Hydro Air. Hydo Air is a Brand of Balboa Water Group – With over three decades of innovative designs, Balboa Water Group is proud to offer a diverse portfolio of world-class products for your whirlpool bath or hot tub. One of Balboa’s key differentiators over the years has been our ability to drive invention that enables our customers’ long-term success. Market changes have never occurred at a faster pace than we are seeing today. At the heart of each of these needs – usability, flexibility, and manufacturability is our core competence of providing custom solutions around our product lines. Balboa is focused on driving the opportunities created by these needs, and creating value for our customers and their end users.
- Jet Extension, HydroAir Hydro-Jet, Gunite w/ Nozzle, Nut, White
Additional Information
Alternate Part Numbers
- 4-40-0140
Exploded parts diagram: This part is shown as item #12 on the HydroAir Hydro Jet exploded parts diagram.
🔧 HydroAir Hydro Jet – exploded parts diagram

The numbered parts below make up this assembly. Parts we stock are linked – click any to view.
| No. | Part |
|---|---|
| 13 | 54-470-W025K13 |
| 12 | Extension Kit, BWG/HAI Hydro Jet Gunite, w/Nozzle, Nut ◀ this part |
| 11 | Tool, Wall Fitting, Balboa Water Group/HAI Hydro Jet, Metal |
| 10 | Jet Internal, Caretaker Carousel, Roto, White |
| 9 | Tool, Wall Fitting, 6-Tip, HydroAir/Balboa Hydro Jet |
| 8 | Tool, Spa Jet Retaining Ring, HydroAir/Balboa Hydro Jet |
| 7 | 54-470-W025K7 |
| 6 | Retaining Ring, Balboa Water Group/HAI Hydro Jet, White |
| 5 | Eyeball, Balboa Water Group/HAI Hydro Jet, White |
| 4a | Nut, Balboa Water Group/HAI Hydro Jet,Wall Fitting,White,2" |
| 4 | 54-470-W025K4 |
| 3 | Gasket, Balboa Water Group/HAI Slimline Suction/Hydro Jet |
| 2 | Jet Body, BWG/HAI Hydro, 2-3/8"hs, a1-1/2"s, w1-1/2"s,Thd |
| 1 | 54-470-W025K1 |

















