Fits
Red Sea ReefATO+
Part no.
R35623
Mount
Magnetic corner
For
Non-Red Sea sumps
Genuine part
Yes, genuine Red Sea
Red Sea ReefATO Corner Bracket
The genuine mounting bracket that keeps a ReefATO+ sensor upright in a sump that isn't a Red Sea sump. Red Sea's own ReefATO+ sensor holder clips straight onto the glass triangle inside a Red Sea sump – everyone else needs this magnetic corner bracket to hold the sensor vertical and at the right height instead.
Key features
- Magnetic corner mount – waterproof external magnets hold the sensor holder against the outside of the sump glass, so nothing sits loose inside the water.
- Keeps the sensor vertical – a level sensor reads correctly only when it's held upright; this bracket is what does that job outside a Red Sea sump.
- Genuine Red Sea part – factory part number R35623, designed as a matched pair with the sensor and its external magnets.
- Fits in the corner – designed to sit in a sump corner, which is also where Red Sea recommends positioning the sensor for reliable level readings.
Specifications
| Manufacturer part number | R35623 |
|---|---|
| Function | Magnetic corner mounting bracket for the ReefATO+ level and temperature sensor |
| Mounting | External waterproof magnets, mounted to the outside of the sump glass |
| Fits | Red Sea ReefATO+ only |
Will it fit my ReefATO?
This bracket fits the Red Sea ReefATO+ sensor. If your sump is a genuine Red Sea sump, you don't need it – the sensor holder clips directly onto the glass triangle in the return pump chamber. It's for anyone running a ReefATO+ on a non-Red Sea sump. Red Sea hasn't published a maximum glass thickness for this bracket; if your sump glass is unusually thick, check with us first.
Suitable for, and not suitable for
- Suitable for: mounting a ReefATO+ sensor vertically in the corner of a non-Red Sea sump's return pump chamber.
- Not suitable for: use with any sensor other than the Red Sea ReefATO+ probe.
Compatibility, spares and supersession
Genuine Red Sea part R35623. Works as a pair with the external corner-mount magnets and the ReefATO+ level and temperature sensor. Red Sea has not published a supersession note for this part.
Care and maintenance
Rinse salt creep off the magnets and bracket during routine sump cleaning so the magnetic hold doesn't weaken over time.
Goes well with
- Red Sea ReefATO+ Sensor – the sensor this bracket mounts.
- Red Sea ReefATO+ System – the full controller.
Warranty and delivery
Covered by our standard returns process for faulty goods, in addition to your rights under Australian Consumer Law. Standard freight.
Common questions
Do I need this if I already have a Red Sea sump?
No. Red Sea's own sumps have a glass triangle the sensor holder clips onto directly – this bracket is only for sumps that don't have one.
Does it include the sensor?
No, this is the bracket only. The sensor is sold separately.
What glass thickness does it suit?
Red Sea hasn't published a maximum glass thickness for this specific bracket. If you have unusually thick sump glass, check with us before ordering.




