
Overflow Standpipe Silencer, 1-1/4 Inch PVC
This baffle slips over your overflow standpipe. It fits 1-1/4 inch PVC pipe. That pipe size comes from the PVC standard, not a guess. 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. We do not publish a noise number. Push it on by hand for a snug fit. We do not glue it, so you can pull it off to clean it. Rinse before use.
Fits rigid PVC
One piece design
- Pieces
- 1
- Material
- PETG
Made in the USA. Printed in the USA when you order.
Made in the USA
Printed to order
Custom sized
Pairs well with
Other parts sized to fit the same hose or pipe.
Fitment
| End | Fits | Size |
|---|---|---|
| pipe | 1-1/4 inch PVC pipe (Schedule 40) | 42.16mm OD |
Sizes come from manufacturer specs or verified listings, not guesses. We measure or source every dimension before it ships on a product page.
Safety
A note on safety
We print every part in PETG. It is the material aquarium keepers have used submerged for years. We cannot promise how any part performs in your tank. You know your tank and your animals best, so the call is always yours. Rinse each part in clean water before you add it to your tank.

