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Tube Size to Use with B&B RV PowerVent Wastewater Tank Vent  

Updated 08/15/2025 | Published 07/16/2025

Question:

Can you recommend the appropriate tubing to use with this vent BM87MR, ID and OD dimensions would be helpful.

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Expert Reply:

Hey Adam, thanks for reaching out!

According to the installation instructions for the B&B RV PowerVent Wastewater Tank Vent # BM87MR you're going to want a 1-3/4" OD flexible tube for the venting.

We don't carry any of this size, but it's pretty easily found elsewhere online.

expert reply by:
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Jon G
B&B RV PowerVent Wastewater Tank Vent Instructions
B&B RV PowerVent Wastewater Tank Vent Instructions
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Jon G. profile picture

Jon G.

8/15/2025

Hey Adam, did you manage to find the right tubing for your vent? I'm curious because it could help others who are looking for the same solution.

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