CP-G GALLON JAR PUMP, dispenses thick, ambient condiments or thicker craft sauces from a gallon jar with 120 mm (4-13/16") diameter over threads, dispenses 1 oz. per stroke, which can be reduced in 1/8 oz. increments, using the supplied gauging collars, non-threaded stainless steel lid (sets over jar threads), stainless steel pump, NSF