A popular model is the 55 gallon, portable Drench-Mate II. The large poly tank has a gas powered engine and a pump that has a 150 GPM for great agitation but only 3 to 5 gallons per minute actually gets drenched into the cow. A quad agitation system is used to insure your drench minerals will stay in suspension prior to drenching. The Drench Mate II is mounted higher than the bottom of the tank so that it can be completely drained during cold weather. It comes on a 3 wheeled tow or pull cart with large flotation tires on it. Included also are the same frick tube with nose tong attached, and poly hose as the Drench-Mate I, plus an extra gas can that fits on the cart. All fittings are brass and stainless steel.