20 DFU (Drainage Fixture Unit) capacity
Complies to ASSE (American Society of Safety Engineers) Standard 1050 and 1051 for use a a secondary vent
One size to handle up to 3" vent pipe
Opens and closes as needed by building's plumbing system, 1-1/2 - 2"
3/19/24
Five stars all the way! This has transformed my experience, and I can't imagine going back to anything else.
1/8/25
Exceptional product! The results were incredible and I couldn't be happier. Worth every penny!
1/21/25
I was blown away by the effectiveness of this product! Great value for money. Highly satisfied!
1/17/25
Perfect in every way! From the packaging to the performance, this item truly delivers.
1/26/25
Amazing quality! This product is worth every bit of the five stars. I’m very impressed!
1/23/25
I’m amazed at how well this product works! Truly a five-star experience from start to finish.