Features Pro-Blend chemical dispensers accurately measure up to 3 oz. (90 ml) of chemicals. Screw onto chemical bottles (not included). Set exact amount of liquid needed with adjustable regulator, squeeze to fill chamber, then pour. Graduated in 1/4 oz. and 5 ml increments. Compatible Mfg. Model Number / 120131 Depth / 2 1/2 in Height / 16 in Width / 2 1/2 in Includes / 38mm Gallon Adaptor