Meters an exact ounce per stroke, so every quart gets the dose the directions call for.
Gallons and five-gallon pails of SFR fortifier ship with a one-ounce pump. This is the replacement — or a spare for a second container — in the two thread sizes we use.
If you track results with oil analysis, an exact dose is what makes the before-and-after numbers comparable.
Thread onto the container, prime with two strokes, then one full stroke per ounce.
