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375 Main Street
Gloucester, MA 01930


Dry Exhaust

A.I.M. Stainless Steel Mufflers

A.I.M series

ROSE MARINE stocks a line of stainless steel mufflers manufactured by APPLEGATE INDUSTRIAL MATERIALS.

Our A.I.M. Series is available in sizes ranging from 3” (inlet and outlet) up to 8” Each is available with either (Style 1) Stainless Steel Weld ends, (Style 2) Stainless Steel Male Pipe Threads, or ( Style 3 ) 150# Flanges.

Applegate Industrial will also custom design a muffler system just for your application. We will be happy to work with you to design the optimum system for your application. Click here to view a size chart.

A.I.M. Flex Pipe Assemblies

AIM Flex Pipe

ROSE MARINE stocks 12-inch overall length flexible exhaust connectors with Schedule 40 carbon steel pipe, beveled at each end for ease of field welding, with 6 inches of ASTM A-240 T-321 Stainless Steel Corrugated flex welded in the center.

The FF series offers Carbon Steel 150#-rated flanges at both ends of a 12-inch overall length flex assembly.

Braided Flex Pipe Assemblies

Braided Flex Pipe

In addition in the 12” flex assemblies. ROSE MARINE also stocks another line of flex assemblies that are 16” long and covered with stainless steel woven braid for added durability. They are available with Stainless or Carbon steel butt-weld ends or N.P.T. threaded ends.

A. Stainless steel ends
B. N.P.T. threaded ends
C. Carbon steel ends

Exhaust fittings and accessories

Exhaust Fittings

To complete your exhaust system needs, ROSE MARINE stocks a wide variety of exhaust system fittings and accessories. To mention a few, we stock:

  • Butt-weld and socket weld couplings and elbows.
  • ANSI exhaust flanges in Stainless Steel & Carbon Steel.
  • Hi-Heat resistant exhaust gaskets
  • Thermo insulation blanket
  • Sch10 Stainless Pipe (by the foot)


Cowl Mufflers Cowl® silencers feature a unique single spiral chamber design that allows a free flow of exhaust gas through a uniform cross-section throughout the entire spiral chamber.  As the exhaust gases pass through the spiral chamber, exhaust noise is progressively attenuated.  The benefits of the Cowl® spiral chamber are high sound attenuation, very low exhaust back pressure and a very small package size.  For information on Cowl sizes and styles available click here.

Cowl's Diagram
Typically, Cowl silencers are approximately 1/3 the physical size and ½ the weight of conventional cylindrical silencers, of similar performance



Centek Wet Exhaust


Vernatone family of inline mufflers includes eight basic products with hundreds of variations in length, width, height, inlets and outlets. Builders and boaters requested these variations for specific engine or location requirements in a particular vessel. These mufflers also vary in size which influences the acoustical performance.


The Vernalift muffler was designed originally for small auxiliary propulsion engines installed near or below the water line in sailboats.


VERNATUBE™ is a resin-impregnated glass filament wound tubing wound exclusively with a fire retardant resin formulated for high temperature applications The smooth, resin-rich I.D. assures minimal restriction to exhaust gases and cooling water flowing through the tubing. Precise control of the outside diameter ensures ease of connecting mating ports with marine exhaust hose.

Exhaust Fittings

Exhaust systems fittings are made of the same fiberglass and fire retardant resins used to produce Vernatube, our UL listed tubing line. The fittings are lightweight, strong, non-corroding, and durable. Fittings are easy to install and O.D.’s are compatible with approved marine rubber exhaust hose.




Rose Marine offers a wide variety of cylindrical mufflers
to fit most sizes and needs.
Below are a couple of companies that have helped us help you getting the right muffler for your needs.

EM products division of MIRATCH designs and manufactures engine silencers ranging in attenuation from industrial through hospital grade. MIRATECH's Cylindrical Series Silencers are conventionally shaped cylindrical designs that range in size from 1” up to 48” inlet diameter.
For information on EM sizes and styles available
click on the link below.   

Belmar Industries designs, manufactures and sells heavy duty, industrial silencers for the engine and blower markets. Our line of engine silencers include custom silencers made to your specifications as well as standard silencers, disk silencers, spark arrestor silencers, compact silencers as well as a complete line of exhaust accessories. The lines of blower silencers cover intake silencers, discharge silencers and blower bases used in a wide range of industries.
For  more information on BELMAR Muffler sizes and styles available click on the link below.    


For more information on centek products, click here