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Muskrat/Otter Guards

"Featured in the Product Showcase of the 2011 Miami International Boat Show . . ."

Any boat that has a wet exhaust with a discharge opening of about three inches or larger is at risk. A Muskrat, Water Rat, Otter or other vermins can and will swim up the exhaust to chew through a coupling hose to the inside of the boat or make a den. That also includes boats with underwater exhausts as these rodents & vermins usually look for underwater entrances leading upwards to hollowed out chambers. This is how many boats sink, even while tied to the dock.  What many boaters don't know is that you are NOT covered by insurance for damages/sinking caused by wild life. 

This product is also known as an Exhaust Mixer for when backing down on fish to mix the exhaust with water to keep the fumes from entering the cockpit or to just minimize the diesel soot on the stern of your boat.

None of us have the time nor money to deal with these nasty rodents. Protect your investment!

Snake screens can also be added for reptile protection.

Hurley Marine Muskrat Guards™ are 316 stainless steel, adjustable and install inside the exhaust ports. Guards are adjusted outward by stainless rods creating friction to the inside of the port, with no penetration to the hull. Installs in minutes. Protection available in difference sizes depending upon the size of your exhaust.

Measuring your exhaust port.

It's important that we get the correct measurement of both exhaust port holes.
We have found that not both exhaust ports are the same size. A 1/4" can make a difference for a bad fit.

To properly measure take a piece of semi-rigid wire and wrap it around completely in the circumference (inside) of the exhaust port. Lay your wire out and measure that length, now divide that measurement by 3.14 to determine the hole size.  Guards can be painted.

SKU# MRG-1012A    3-3/4" to 4-3/4"
SKU# MRG-1012B    4-3/4" to 7-1/4”
SKU# MRG-1012C    7-1/4" to 8-3/4"
SKU# MRG-1012D        8-3/4" to 11”

Contact us for pricing/shipping after measuring and identifying your product SKU#
(Quality Hurley Marine Product made in the USA)