One-Touch pumps are not recommended for use with Acrylic Liquid Neck size: 38-400 threaded Patented one handed operation frees operator's hands Precision machined valves for smooth consistent operation Cam-lock hinge keeps lid open and closed, reduces odors No silicone or latex - perfect for ultra clean environments Perfect for cleaning with cotton balls, pads, and brushes Fits all Standard Menda HDPE, glass, and steel bottles 100% Stainless steel will not corrode or contaminate liquid Dispenses approximately 0.2cc of liquid with each pump Ideal for use with hand sanitizer Made in the United States of America for superior quality This item is made and stocked in Santa Barbara, CA.