Synthetic O-ring and piston cup hold up against the harshest chemicals, even D-limonene and solvents. Up to 40% greater output per stroke significantly reduces the number of times you pull the trigger. Ideal for window cleaning, auto detailing and car washing. Fits on 32 oz spray bottle and forms a tight seal to help prevent leaks. 9-1/4” dip tube length. Output is 1.4mL. 28/400 thread finish.