This listing is for ONE Solid Plug. Solid: Problem: Too much ventilation is slowing you down. Solution: By sealing off the vent hole completely, your prop can now get the solid water it needs to propel through, optimizing performance and fuel efficiency.

Mercury PVS Performance Vent System Small Plug for Props (5-Pack) This listing is for FIVE Small Plugs. Small Problem: Changes in altitude or pulling heavier loads. Solution: By experimenting, you can find the right amount of ventilation that produces maximum propeller performance - no matter the al...

MERC VENT PLUG LG@5

MERC VENT PLUG LG@5