This part has been marked obsolete by the manufacturer. You can use Alemite p/n 6320-3 as a substitute.
The Alemite Deluxe High-Pressure Control Valve 7421-3 comes with an Extension model 49136 and Coupler model 6304-B. This model has a 1/4" NPTF Female material inlet and can hold up to 7, 500 psi pressure.
- Selector provides full flow and a wide range of measured shots
- Built-in three-stage strainer prevents dirt from fouling valve or damaging bearings