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Rheem RTG20151R 12 in. Vent Length
Model#: RHMNRTG20151R

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Rheem RTG20151R 12 in. Vent Length

Model#: RHMNRTG20151R
Our Price:
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$5.00 (12%)
In Stock
Ships Monday

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  • 11.66 in. overall length
  • For 3 in. / 5 in. Concentric Tankless Venting
  • Manufactured by Metal Fab, Inc.
  • Not compatible with components manufactured by Heat-Fab
  • 12 in. Vent Length - RTG20151R


Product Reviews


by PowerReviews
Rheem12 in. Vent Length

(based on 2 reviews)

Reviewed by 2 customers

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(1 of 1 customers found this review helpful)


12" length = 8.5" after assembly.

By Ron

from Cedar City, UT

About Me Homeowner

Verified Buyer


  • Cpo Ships Fast
  • Durable
  • Easily Understood Instructions
  • Easy Installation
  • Easy To Maintain
  • Energy Efficient
  • Great Seal
  • Solid Construction


  • From Lable
  • Usable Length Differs

Best Uses

  • Cold Climate
  • Dry Climates
  • Humid Climates
  • Large Homes
  • Small Homes
  • Warm Climates

Comments about 12 in. Vent Length:

Make sure you read the description carefully. I had to order the correct length after receiving the 6" pipe I ordered (which was actually only a 2.5" extension.) This was my first time using 3/5 concentric so maybe everyone else already knew this. Anyway, the fit turned out perfect and resulted in a professional tankless installation that replaced my gigantic 1940's boiler in the basement.


Good product

By joeblack

from san francisco bay area

Verified Buyer


  • It's what I need


    Best Uses

      Comments about 12 in. Vent Length:

      The express order took longer than I expected.

      Displaying reviews 1-2

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      Questions & Answers

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      1 Question | 1 Answer
      Displaying question 1
      • 12 in. Vent Length


        what is the max. extension on the outside wall.
        Asked on 4/7/2014 by Raymond from United States

        1 answer

        • Staff Reviewer


          The outside wall measures 11".

          Answered on 4/8/2014 by Ken from Atlanta, GA
      Displaying question 1

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