Tsunamiā"¢ Lubricators are all powder-coated Zamac construction with clear Nylon sight slots. Delivers a very high quality proportional flow of lubricant per SCFM of air. It uses a micrometric regulation effect to dispense oil into the air stream. This method ensures lubrication a very low flow as well as at very high flow. Adjustment is achieved by turning the slotted needle located inside the flow gauge on the head.