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Shields Hose 18-720-2120 Marine Exhaust T-Bolt Hose Clamp 3/4" Band 316 Stainless Steel

Manufacturer

Shields Hose

<h3>Shields Hose: The Marine Industry Standard for On-Board Fluid Systems</h3><p><strong>Shields Hose</strong> is one of the most recognized names in marine plumbing, trusted by boaters and boatyards worldwide to keep critical fluid systems running safely and reliably. A brand under the SeaStar Solutions family, Shields has built its reputation on producing purpose-engineered hose products designed specifically for the demands of the marine environment — where saltwater corrosion, fuel exposure, and constant vibration can defeat lesser materials.</p><p><a href="/200539-hoses-shields-hose-7563">Marine hoses</a> from Shields cover a remarkable range of on-board applications. From engine cooling water intake and bilge discharge to sanitation lines, potable water supply, air conditioning, and holding tank venting, the Shields catalog addresses virtually every plumbing need a vessel can present. Each product line is built around specific performance requirements, with options ranging from reinforced PVC tubing for freshwater supply to heavy-duty EPDM compounds for chemical and heat resistance.</p><p>What sets Shields apart from generic alternatives is its commitment to compliance. <a href="/200539-hoses-shields-hose-7563">Shields hoses</a> are engineered to meet or exceed the strict standards set by the USCG, ABYC, SAE, EPA, and NMMA — the regulatory bodies that govern marine safety in the United States and beyond. For professional marine technicians and serious boat owners alike, that certification trail matters enormously when a system failure at sea is not an option.</p><p>The brand&apos;s flagship <strong>ShieldsFlex II (Series 250)</strong> is a prime example of that engineering philosophy. This <a href="/7563-shields-hose-wet-exhaust-hose-201177">wet exhaust hose</a> features a black synthetic rubber tube reinforced with a wire helix embedded between layers of heavy-duty synthetic cord, giving it the flexibility to handle long runs and moderate bends without collapsing under pressure. It offers double the ozone resistance required by SAE J2006 standards, and its construction resists exhaust fumes, mild chemicals, antifreeze, and saltwater — the full spectrum of harsh conditions found in a marine engine compartment.</p><p>Shields also produces a robust range of <a href="/7563-shields-hose-fuel-hose-200442">marine fuel hose</a> and <a href="/7563-shields-hose-fuel-hose-bulk-200443">bulk fuel hose</a> products. These lines incorporate low-permeation barrier technology to comply with EPA and CARB requirements, making them suitable for modern fuel blends including gasoline with up to 85% ethanol and all bio-diesel blends. Proper fuel hose selection is a safety-critical decision on any vessel, and Shields provides clearly specified series to match the correct hose to each application.</p><p>Rounding out the lineup, Shields <a href="/7563-shields-hose-hose-clamps-200536">marine hose clamps</a> are manufactured from marine-grade 316 stainless steel to resist the corrosion that inevitably attacks lesser hardware in saltwater environments. Using the correct clamp — and replacing clamps whenever hoses are serviced — is a best practice that Shields supports with a full range of worm gear and T-bolt styles sized to their hose series.</p><p>Whether you are re-plumbing a classic cruiser, maintaining a sport fishing boat, or building out a new vessel, Shields Hose offers a complete, standards-compliant solution for every hose run on board.</p>

Part Number

18-720-2120
09/22/2036 2:21 AM
Sale Price

$11.05

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Shields 18-720-2120 is a heavy-duty marine T-bolt hose clamp designed specifically for demanding marine applications including exhaust systems, intake systems, and any below-waterline connections. Built to withstand the harsh marine environment, this clamp delivers reliable, leak-free performance where standard clamps fail.

Key Features:

  • Constructed from corrosion-resistant 316 stainless steel for maximum durability in saltwater environments
  • 3/4" wide band provides superior clamping force and even pressure distribution
  • Full 360° clamping surface ensures uniform compression around the entire hose circumference
  • Optimized for use with corrugated marine exhaust and intake hoses
  • Extra-long 1/4" bolt with nylon insert locknut prevents loosening from vibration
  • Maximum torque specification of 75 inch-pounds for proper installation

This T-bolt clamp is ideal for connecting marine wet exhaust hoses, silicone hoses, and other flexible ducting in engine rooms and below the waterline. The 316-grade stainless steel construction resists corrosion from saltwater, exhaust condensation, and bilge water exposure, making it the preferred choice for serious marine applications where reliability is critical.

Products specifications

Band

3/4"

Maximum Hose/Wire Size

3.34"

Minimum Hose Size

2.68"

Said 2 day shipping, took well over a week, otherwise no issues.

Fast and Easy

Great price and free ground shipping. What more can I ask for?

I like the service and the product works great

Haven't ordered from here since 2010. Only 2 orders overall and it was actually pretty great thank you. Though I will say, the item selection has gone way down but I still was very satisfied. Thanks again.

received order very quickly. I haven't installed it yet

Easy to find what I need and easy to order.

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