SKU: 71872305221

Metal-Fab Type B-Vent 5" Diameter Round to Oval Adapter

Sale price$179.99 Regular price$199.99
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Description

Metal-Fab Type B-Vent 5" Diameter Round to Oval AdapterType B Gas Vent products are tested and listed to UL 441 for approved gas appliances and feature our innovative twist lock connection and locking tab, eliminating the need for sheet metal screws. Metal Fab Type B Gas Vent combines hemmed flues and casings that maximize product durability and reliability and minimize installation time. Designed for versatility, Metal Fab Type B Gas Vent products 3" 6" adapt to major competing brands and when installed

Type-B Gas Vent products are tested and listed to UL 441 for approved gas appliances and feature our innovative twist-lock connection and locking tab, eliminating the need for sheet metal screws. Metal-Fab Type B Gas Vent combines hemmed flues and casings that maximize product durability and reliability and minimize installation time. Designed for versatility, Metal-Fab Type-B Gas Vent products 3"-6" adapt to major competing brands and when installed establish a UL Listed connection.

What's Included

  • 5" Diameter Round to Oval Adapter

Features

  • Available in 4", 5" and 6" sizes.
  • Round and Oval Type-B Gas Vent is listed by Underwriters Laboratories INC. for use with approved gas furnaces, heaters, fireplace, and boilers. Metal-Fab meets or exceeds all recognized gas venting codes, standards, or requirements, whether Local, State, or United States.
  • The maximum temperature rating for B-Vent is 530°F.
  • Double Wall Construction
  • SureLock™ B-Vent Locking System: SureLock™ is standard on 3" - 6" diameters.
  • Note: The vent overlaps 1.5" when joined together. Therefore, the assembled length is 1.5" less than the listed length.

Specifications

Model 5MRO
Application For use with category I natural gas-burning or propane-fired appliances such as gas boilers, fireplaces, furnaces, unit heaters and radiant tube heaters.
Listings/Standards NFPA 54
NFPA 211
UL 441
Flue Material Aluminum Alloy .012" thick for sizes 3" to 8" diameter
Casing Material Galvanized Steel .018" thick G90 Steel for sizes 3" to 14" diameter
Clearances 1" Minimum clearance to combustibles for 3" - 24"
Oval Diameter 5"
Round Diameter 5"
Height/Length 10.5"

Technical Drawings & Dimensions

Warranty

The Metal-Fab Type-B Gas Vent when installed according to manufacturer installation instructions, as prescribed by Underwriter Laboratories Standard 441 and 103, is warranted by Metal-Fab Inc. for one (1) year from the date of its original installation against defects in material or workmanship of the product for parts only. Any defective part in the product will be, at Metal-Fab’s option, either repaired or replaced. The purchaser must return such defective part, with all transportation charges prepaid by said purchaser to Customer Service Department, Metal-Fab Inc., 3025 May Avenue, Wichita, Kansas 67213. The repaired or replacement part will, in turn, be shipped by Metal-Fab Inc. to the purchaser, freight collects, with the purchaser to be responsible for all freight charges. The warranty on any repaired or replacement part shall be for a duration of time no longer than the remaining or unexpired term of the original warranty. This warranty does not cover any labor or other service charges.

Click to see Full Warranty Details

It is PURCHASER’S RESPONSIBILITY to establish the date of the original installation of the product.

DISCLAIMERS AND EXCLUSIONS

The following shall be applicable to those products of Metal-Fab Inc., described above:

  1. The warranty described hereinabove shall be IN LIEU of any other warranty, express or implied. Except as set out hereinabove, there are NO other warranties, and any statutory or implied warranty of MERCHANTABILITY or fitness for a particular purpose is EXCLUDED from this transaction and shall not apply.
  2. The purchaser agrees that his sole and exclusive remedy against Metal-Fab Inc. shall be for the repair or replacement of defective parts as provided hereinabove. The purchaser agrees that NO OTHER REMEDY (including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or property, or any other incidental or consequential loss) shall be available to him. The sole purpose of the stipulated exclusive remedy provided for herein shall be to provide the purchaser with repair and replacement of defective parts in the manner provided hereinabove. This exclusive remedy shall not be deemed to have failed of its essential purpose so long as Metal-Fab Inc. is willing and able to repair or replace defective parts in the prescribed manner. The purchaser shall not be required to deliver a defective part to Metal-Fab Inc. if:
    1. The part was destroyed as a result of its defect or any defect in any part covered in this warranty; and
    2. Metal-Fab Inc. is reasonably satisfied that the part was defective at the time of sale.
    If both of these conditions are met, Metal-Fab Inc. will replace the part in the same manner provided herein as if the purchaser had delivered it to Metal-Fab Inc.
  3. The purchaser acknowledges that no oral statements purporting to be warranties, representations, or guarantees of any kind about any product of Metal-Fab Inc. have been made to the purchaser by Metal-Fab Inc. or its dealer, which in any way expands, alters, or modifies the terms of the warranty set out herein. Any such statements do not constitute warranties, shall not be relied on by the purchaser, and are not part of the contract of sale. This writing constitutes a complete and exclusive statement of the terms of any warranty, express or implied, of Metal-Fab Inc.
  4. There is NO WARRANTY for any defective part of a Metal-Fab product which has been removed from its original installation site or which arises from mishandling, neglect, fire, flood, lightning, corrosive atmosphere, improper installation of the product, unauthorized modification of the product, improper fuel supply to the product, or the failure of the purchaser to properly install the product as is set out in the installation instructions.

Documents & Files

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 71872305221

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Sean
Los Angeles, US
★★★★★ 5
Great first layer. True to size.
Size: 3X-Large Tall, Color: Gray
They fit nicely as a first layer underneath a T-shirt. Great for my purpose which was a extra layer for machining lab days where we cannot have long sleeves.
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Reviewed in the United States on June 2, 2026
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Rustybeatz87
Waukegan, US
★★★★★ 4
Great fit doe your workout
Size: Medium, Color: Black (001)/Graphite
Great shirt and feels great during my workouts. Fits just about to the size. I wear a medium and it’s a little loose but not bad.
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Reviewed in the United States on May 12, 2026
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TCM
Massapequa, US
★★★★★ 5
Good Basic Athletic Shirt
Size: Small, Color: Gray (002)/Black
These shirts (I have six) are all they should be, and, for the price, an excellent choice for a regular workout or running shirt. Nothing too flashy. Washes well. Doesn't shrink or wrinkle. May run a tad small.
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Reviewed in the United States on June 7, 2026
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PrimingFX
Boise, US
★★★★★ 5
Fits great
Size: 3X-Large, Color: Black, Size: 3X-Large, Color: Black
Ah, let me spin you a yarn about the Under Armour Men's Tech 2.0 Short-sleeve T-shirt – the sultan of comfort, the maestro of moisture-wicking, and the unsung hero of casual wear that will make you question why you ever settled for less in the realm of T-shirts. First and foremost, let's talk about the fabric – it's like wrapping yourself in a cloud woven from the threads of a thousand cotton candy dreams. The Tech 2.0 T-shirt caresses your skin with the tenderness of a gentle breeze, making you wonder if you accidentally stumbled upon a secret society of clothing wizards who specialize in the art of softness. The fit is like a custom-tailored suit for your torso. It hugs you in all the right places without making you feel like a sausage casing or a misplaced balloon animal. I've worn it for everything from impromptu dance-offs to intense staring contests with the refrigerator, and it never once betrayed my aesthetic sensibilities. It's the kind of fit that says, "Yes, I work out, and yes, I also enjoy pizza. Balance, my friends, balance." Now, let's delve into the realm of moisture-wicking technology – a.k.a. the superhero cape of T-shirt features. I've worn this shirt through sweaty gym sessions, summer heatwaves, and surprise encounters with old acquaintances that induce nervous perspiration. And yet, it remains drier than a stand-up comedy show in a desert. It's practically a magical force field against sweat – the kind of sorcery that leaves you feeling fresher than a daisy in a rain shower. But the real showstopper is the Anti-Odor technology. It's like the T-shirt gods sprinkled a bit of enchantment into the fabric, ensuring that no matter how much you exert yourself, you'll smell as fresh as a mountain breeze. I've worn it for consecutive days – don't judge; laundry is a social construct – and emerged smelling like a field of wildflowers. And let's not forget the humor in this T-shirt masterpiece. The Under Armour logo is like a subtle flex, a tiny symbol that says, "I take my comfort seriously, but I'm also low-key athletic." It's the T-shirt equivalent of a wink and a nod, a fashion statement that knows how to have a good time. In conclusion, the Under Armour Men's Tech 2.0 Short-sleeve T-shirt isn't just a T-shirt; it's a lifestyle upgrade. With a comfort level that defies earthly standards, moisture-wicking prowess that mocks the very concept of sweat, and a dash of humor in its branding, it's the shirt you never knew you needed until you experienced the cottony embrace of greatness. So, fellow T-shirt connoisseurs, let the Tech 2.0 redefine your torso's expectations – where every wear is a journey into the luxurious realms of fabric excellence!
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Reviewed in the United States on November 9, 2023
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Mike Pickering
Alexandria, US
★★★★★ 5
Superb running shirt
Size: Medium, Color: Steel Light Heather (036)/Black
I really love this shirt, so much I ordered a second one. I'm between a medium and large and found the medium was the best fit; not too tight. The large was a bit on the big side for me, but I kept it anyway, it's not so big it swallows you up. Even when sweaty, it doesn't cling to you like some of the running shirts I've tried.
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Reviewed in the United States on May 28, 2026

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