GT Water Products MPS4 Master Plunger Sink & Tub, BlackGT Water Products MPS4 Master Plunger Sink & Tub, Black Features: Same patented technology that has made the Master Plunger the world"s finest plunger Made smaller to be price competitive with the most inexpensive rubber cup plunger but will still move 3 times more displacement than the standard rubber cup plunger Holds a better seal that the rubber cup plunger Life time guarantee Black