Protect Lives.
Protect Marine Life.
Enhance Performance.
Prop Guard® is a unique, U.S. and internationally patented propeller guard with no moving parts. Manufactured to rigid specifications in state-of-the-art polypropylene.
The Science of Performance
For over fifty years, the same basic technology employed in the PROP GUARD® has been successfully used worldwide by canal boats, river boats, and commercial fishing vessels to achieve greater propeller thrust and substantial fuel savings.
The Kort Nozzle Principle
Prop Guard® is made to surround the propeller like a nozzle. This engineered nozzle action moves water with a controlled directional force. The loss of kinetic energy due to rotational flow downstream of the propeller is partially recovered by the guide vanes of the Prop Guard®.
Superior Handling & Control
In steep turns, boats tend to turn on their center of gravity, causing the propeller to lose its bite. Prop Guard® eliminates this. The greater lateral area of the nozzle produces a larger effective rudder area, providing significantly greater steering control at high speeds and dramatic increases in stopping ability.
Uncompromising Safety
Human Safety
A recreational propeller can travel from head to toe on a person in the water in less than one-tenth of a second. Prop Guard® acts as a critical physical barrier to mitigate catastrophic injuries.
Wildlife Protection
Propeller strikes are a leading cause of mortality for marine life, including manatees and sea turtles. Installation of the Prop Guard® greatly reduces prop blade injuries to marine wildlife.
Hull & Engine Protection
Allows a vessel to be trimmed efficiently, reducing porpoising and hull stress. The high-impact plastic construction absorbs shocks without shattering or corroding like metal alternatives.
Trusted by Professionals Worldwide
Prop Guard® is recognized and utilized by the Coast Guard, life guards, and military vessels for its greater safety factor and increased vessel control. Furthermore, marine insurers often offer premium reductions for policyholders who install safety devices on their vessels.
Available Models
Prop Guard® is available for ALL Outboard and Stern Drive applications. Each size is color-coded for safety and visibility.
9" Prop Guard
Safety Yellow
11" Prop Guard
Safety Orange
13" Prop Guard
Safety Blue
14" Prop Guard
Safety Red
16" Prop Guard
Safety White