the ultimate rack-mounted ally that's always at the ready:

The Campbell Hausfeld 20-gallon

insulated dual lance - Has high and low pressure tips that allow you to switch to the low pressure detergent injector without having to change tips

Clemco Contractor Blast Machine Model 2020 Low Pressure Breathing Air System (LP) Complete Package

Bypass Ports: 1/2" FPT & 3/4" MPT

7535/7542 Unloader Blue Spring Max PSI_120 PSI the ultimate rack-mounted ally that'sProvides system pressure setting and protection for single or multiple gun, nozzle and pump systems. Immediately returns to system pressure when gun opens. Serves also as a secondary relief valve. Compact size and easy installation. SPECIFICATIONS: Pressure range: 800 to 4000 PSI Flow range: 1 to 21 GPM Maximum temperature: 180 F Inlet: 1 2" FPT Outlet: 1 2" FPT Bypass: 1 2" FPT Dimensions: 8. 75" x 3. 75" x 1. 75" Weight: 2. 9 lbs