Check the listing for details. Adjustable Long Range Downstream Injection Nozzle Kits 4-4.5 GPM Pressure Washer. Condition: New. Listed at 52.99 USD. By preventing chemicals from going through the pump, hose, reels, gun, lance, or quick connects, this compatible nozzle reduces the likelihood of corrosion developing and damaging the pressure washer equipment. The long range chemical nozzle features universal 1/4" quick connector that can be connected to the outlet of the pressure washer gun or wand. The chemical injector kit features adjustable spray angles and dual usage modes. The power washer chemical injector features a variable nozzle at the outlet, allowing for the adjustment of the spray pattern from 0 to 65 degrees. With soap & rinse modes in the same nozzle. The nozzle also can be used in the rinse mode to water vegetation such as shrubs, and flowers or wet down other surrounding surfaces.