Quick overview and explanation on the latest Variable Speed swimming pool pump by Hayward. This particular model is the TriStar 950 VS. Hope this video serves you well and answers some of your questions. Hayward offers the trade a one time special try me price on all their variable speed pumps, along with several other items. Contact your local rep for more information. NSF tested all the major manufactures variable speed pumps side by side, the TriStar 950 pump was rated most efficient variable speed pump at any speed.