Trident Marine Hose THHR Series Step-Up High Temp Black Rubber Exhaust Bellows - Hump Hose
Trident Marine Hose THHR Series Step-Up High Temp Black Rubber Exhaust Bellows - Hump Hose
353ss of Trident Marine Hose & Propane THHR Series Step-Up High Temp Black Rubber Exhaust Bellows - Sgl Hump Hose
thhr-108ss of Trident Marine Hose & Propane THHR Series Step-Up High Temp Black Rubber Exhaust Bellows - Sgl Hump Hose
43ss of Trident Marine Hose & Propane THHR Series Step-Up High Temp Black Rubber Exhaust Bellows - Sgl Hump Hose
86ss of Trident Marine Hose & Propane THHR Series Step-Up High Temp Black Rubber Exhaust Bellows - Sgl Hump Hose
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Step-Up High Temp Black Rubber Exhaust Hose Bellow

THHR Ser. - Black 250 Deg Max | High Temperature - Single Hump | With or Without SS Hose Clamps

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Overview
Hump Hose Bellows provide flexible connectors for marine wet exhaust systems. They offer much greater tolerance to heat, misalignment, engine movement and vibration than rigid connectors, with significant savings in cost, parts, labor and space.

These THHR Series step-up, molded single hump exhaust bellows are 100% EPDM* rubber, and are available in 5 step-up sizes from 3"/3-1/2" to 8"/10" ID.
They provide a convenient to connect exhaust system components with differing hose sizes. This most often happens when a component (such as a muffler) is upgraded or replaced.
While these adapters can be used to reduce, as well as step-up, the internal size of the system, it should be noted that engine manufacturers generally don't recommend reducing the size, as this can increase exhaust back-pressure, which can reduce engine horsepower output.

• Black bellows: made from molded, high temperature, black EPDM rubber. Rated -40°F to +250°F maximum, continuous with a 5-year warranty
• Inlet/outlet cuffs are long enough to fit 2 hose clamps
• Note: Any part #s ending in SS come with 4 wide stainless T-bolt hose clamps


High Temperature Hump/Bellows Exhaust Hoses Color Comparison
Black bellows: made from molded, high temperature, black EPDM rubber. Rated -40°F to +250°F maximum, continuous with a 5-year warranty
Blue bellows: made from a very high temperature, blue silicone rubber. Rated -65°F to +350°F maximum, continuous with a 10-year warranty
Red bellows: made from an extra high temperature, red silicone rubber. Rated -65°F to +500°F maximum, continuous with a 10-year warranty

*EPDM is Ethylene Propylene Diene Monomer, commonly referred to as EPDM or EPDM rubber. It can withstand relative high temperatures and exhibits excellent resistance to environmental factors such as ozone, UV, acids, bases, and general weathering.
By comparison, Silicone rubber's outstanding characteristic is its resistance to even higher temperatures, as well as having a longer service life than EPDM. Silicone hose is compatible with water or anti-freeze such as coolant.
Neither of these synthetic rubbers is compatible with fuel or oil, so be careful to protect from exposure.
 
PRODUCT DETAILS TABLE WITH OPTIONS AND PRICING
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Sku#Item IDTrident Marine Hose & Propane#AvailabilityDescriptionUOMYour PriceQTY
80732HOS THHR-353SS THHR-353SSLoading...Step-Up Black Rubber Exhaust Bellows - 3" x 3-1/2" ID, with ClampsLoading...
80734HOS THHR-43SS THHR-43SSLoading...Step-Up Black Rubber Exhaust Bellows - 3" x 4" ID, with ClampsLoading...
377009HOS THHR-54 THHR-54Loading...Step-Up Black Rubber Exhaust Bellows - 4" x 5" ID, without ClampsLoading...
80736HOS THHR-54SS THHR-54SSLoading...Step-Up Black Rubber Exhaust Bellows - 4" x 5" ID, with ClampsLoading...
170326HOS THHR-65 THHR-65Loading...Step-Up Black Rubber Exhaust Bellows - 5" x 6" ID, without ClampsLoading...
80738HOS THHR-65SS THHR-65SSLoading...Step-Up Black Rubber Exhaust Bellows - 5" x 6" ID, with ClampsLoading...
80740HOS THHR-86SS THHR-86SSLoading...Step-Up Black Rubber Exhaust Bellows - 6" x 8" ID, with ClampsLoading...
80742HOS THHR-108SS THHR-108SSLoading...Step-Up Black Rubber Exhaust Bellows - 8" x 10" ID, with ClampsLoading...
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