The Sure Shot Flush Pot 32oz. Sprayer with our 12″ Flex-Wand. Just a couple of short shots of MILD gun cleaner removes and eliminates this mess. Our 12″ Flex-Wand has a 1/4′ NPT male pipe thread. Just add the Flush Block that came with your new Spray Foam Gun. You can trust the Sure Shot brand to deliver the best in spray foam gun cleaner and gun flush systems. With Sure Shot Flush Pot Gun Cleaner, you can easily stay on top of your spray foam equipment cleaning after every use. Using a gun flush regularly helps your spray foam tools stay in top shape. Your equipment will be spotless and ready for your next insulation job.