SS1-This stainless steel pump with shroud dispenses directly from a #10 can, 3 quart (2.8 L) stainless steel jar 94009 or 1 gallon (3.8 L) jar. The pump dispenses 1 ounce (30 mL) per stroke with the option to reduce portions in 1/8 ounce (3.7 mL) increments, using the supplied gauging collars. When you place your order, be sure to request a colored knob engraved with your contents for a clean presentation. A yellow knob is shown, however, black is standard. Standard features include: Stainless steel construction with captured valve balls to eliminate loss 1 oz (30 mL) maximum portion, now adjustable in 1/8 oz (3.7 mL) increments -- allows for Portion Optimization