
Real photo of the Black part.
Overflow Standpipe Silencer, 1-1/4 Inch PVC
This baffle slips over your overflow standpipe. It fits 1-1/4 inch PVC pipe. It works with a Herbie style or BeanAnimal style drain, the two common quiet-drain setups hobbyists build. Inside, small vanes break up the water as it falls, and slots on the side let air bleed out. That takes the gulp out of the drain, so it runs smoother. Push it on by hand for a snug fit. We ship it dry, with no glue, so you can pull it off to clean it. Press it down until it seats on the standpipe. Rinse before use.
For rigid PVC
One piece design
Made in the USA
Printed to order
Custom sized
Compatibility
Know your connection size?
Pick your connection size and we will tell you whether this is the part. Know your filter model instead? Start there.
Need help identifying your setup? Send us a photo.
Snap the label on your gear and the spot the part goes. A person looks at every photo and emails you back.
Send a photoSpecifications and install steps
Specifications
- End
- Pipe end, slip socket, for rigid PVC
- Dimensions
- 42.16mm OD
- Material
- PETG
- Colors
- Black, White
- Pieces included
- 1 printed piece
- Care
- Pull it off and rinse it in clean water.
| End | Size | Measurement |
|---|---|---|
| pipe | 1-1/4 inch PVC pipe (Schedule 40) | 42.16mm OD |
Want us to point at the right row? Send us a photo of your setup and a person will look at it.
Need a different size?
Pick your sizes in the Custom Builder and we will print it.
Build a custom partHow to put this overflow silencer on
- What is in the box
- One printed piece. There is nothing to put together.
- How it goes on
- It slips over your overflow standpipe. It is sized to Schedule 40 pipe, in 1 inch and 1-1/4 inch.
- Push it on by hand for a snug fit. We ship it dry, with no glue, so you can pull it off to clean it.
- Check that it sits snug before you leave it.
- Check it the first time
- Rinse the part in clean water before it goes in your tank.
- Run the drain and check that it is still seated.
- Cleaning
- Pull it off and rinse it in clean water.
- Taking it off
- Pull it off by hand. Nothing is glued.
Safety
A note on safety
We print every part in PETG. It is the material aquarium keepers have used submerged for years. Rinse each part in clean water before you add it to your tank.
Common questions
Does the silencer work with my style of drain?
It works with a Herbie style or BeanAnimal style drain, the two most common quiet drain setups.
How does the silencer quiet the drain?
Small vanes break up the falling water inside it, and side slots bleed air. Trapped air is what makes most drains gulp in the first place.
Why do you not list a decibel or noise number?
Results depend on your own plumbing, drain style, and flow.
What pipe standard is the silencer sized for?
It is sized to a Schedule 40 standpipe, the standard most overflow drains use. Our two sizes cover 1 inch and 1-1/4 inch pipe.
Pairs well with this part
Other parts sized to fit the same hose or pipe.

