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B&B RV Vacuum Breaker - Check Valve - Black
(21 reviews)
Price: $38.84
In Stock
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- Reviews (21)
- Q & A (0)
- Videos (1)
- Photos
B and B Molders Accessories and Parts - BM93GR
- RV Water Inlets
- Check Valve
- Vacuum Breaker
- B and B Molders
- Black
Prevent wastewater backflow containing harmful bacteria from traveling up from your RV's waste tank up to your B&B city water inlet. The combination vacuum breaker-check valve installs between water inlet connection and tank flusher.
Features:
- Combination vacuum breaker-check valve installs between water inlet connection and tank flusher
- Prevents wastewater backflow containing harmful bacteria from tank to city water inlet inlet
- 1/2" MPT connections make set-up more manageable with PEX fittings and tubing
- Specific orientation required for proper function - listed on part
- NSF, IAPMO, and CSA certified
- Made in the USA
Specs:
- Max line pressure rating: 125 psi
- Fittings: 1/2" MPT
- 1-Year warranty
725-009-00002 B and B Molders Vacuum Breaker/Check Valve - Black - 94239
Installation Details
Video of B&B RV Vacuum Breaker - Check Valve - Black
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Video Transcript for Comprehensive Review: B and B RV Vacuum Breaker
Hi, everybody, Andy here with etrailer.com. Let's take a brief look together at this B&B RV Combination Vacuum Breaker Check Valve. Now, this combination vacuum breaker check valve is going to install between your water inlet connection and tank flusher, preventing wastewater backflow that contains harmful bacteria. The 1/2 inch MPT connections are gonna make setup more manageable with PEX fittings and tubing. And a specific orientation is required for proper function, and it is listed on the part. This is NSF, IAPMO, CSA, and TEI certified.
This is made here in the USA. And this does have a maximum line pressure rating of 125 psi. Well, I think that's gonna wrap up our real quick look today. I do hope that it was helpful for you. Again, my name is Andy.
Thank you for joining me.
Customer Satisfaction Score:
99% were satisfied with this product
1% of customers were not satisfied
- Did not arrive in time
Ratings & Reviews
4.8
21 reviews
by:
Blaine
03/27/2026
This part is something every camper should have in their spare parts...after dewinterizing it wasn't until checking all systems (including black tank rinses) that we found the original part had failed...big flood in our 5th wheel that we were able to catch and clean up immediately...do yourself a favor and get one now.
by:
Trent
09/07/2026
As advertised and fixed the water leak. Had some shipping issues out of their control, but were very responsive. Will definitely be using this company more for my trailer needs in the future. Excellent customer service.
by:
Robert
03/04/2026
Ordering was easy but product was out of stock .. they took my $$ and shipping then took longer than expected.
Product is great and works great!!
Product is great and works great!!
by:
Roger
11/06/2025
Fast delivery service
by:
Neil
10/21/2024
E trailer is the best online company I deal with. Their customer service, communication, product knowledge is outstanding.
by:
John
05/21/2025
This easy to install and works well
by:
Thomas
07/14/2026
Thanks!
by:
Mark
07/26/2026
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Rodney
09/28/2026
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Becky
04/22/2026
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Bill
08/21/2026
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Anthony
09/05/2026
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Paul
03/30/2026
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Timothy
11/01/2026
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Richard
06/26/2025
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Sherman
04/29/2025
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Jan
07/25/2025
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Mike
08/05/2025
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Todd
06/25/2025
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Sandra
10/31/2024
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Robert
07/29/2024
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See what our Experts say about this B and B Molders Accessories and Parts
- How to Connect the B&B RV Water Center BM32GR to a Black Water TankHey Bill. The 1/2" MPT tank flush port on the back of the B&B RV Water Center item # BM32GR is going to connect to you black water holding tank's built-in rinse nozzle. The water center uses 1/2" PEX pipe to connect to the black tank. If your black tank doesn't have a built-in rinse nozzle, you can use the Replacement Flusher Sprayer item # BM33GR to add one. You'll also need the B&B RV Vacuum Breaker item # BM93GR to prevent wastewater backflow from the black tank from contaminating...
view full answer... - Looking for Soft Close Lid Replacement for Thetford 42072 Aqua Magic IIHey James, I looked up the part number you mentioned and it is a component from the Thetford Aqua Magic II RV toilet so for a replacement soft close kit what you would want is the part # TH34FR43XB as long as your toilet was made of 2015.
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Do you have a question about this Accessories and Part?
Info for this part was:
Expert Research:
Jameson C
Updated by:
Wilson B
Edited by:
Amanda M
Installed by:
Andy C
Written by:
Cody B
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Heather A.
4/10/2026
That’s a close call right there, glad you caught it when you did! A leak like that can get out of hand fast. You’re absolutely right, that’s one of those small parts people don’t think about until it fails, and then it becomes a big deal in a hurry. Having a backup on hand just makes life a lot easier, especially after dewinterizing when things tend to show up. Really appreciate you sharing that experience, it’s a great reminder for other campers to check those systems before hitting the road. How is the fifth wheel life treating you now?