Pack size
1 piece
Water type
Marine (reef)
Fits
ReefDose 2, ReefDose 4
Part no.
AA2582
Replace every
12 months
Red Sea R35334 ReefDose Head-Tube with hose barb 1 PCs
The one part every ReefDose owner should keep a spare of. This is the internal head-tube with hose barb for Red Sea's ReefDose 2 and ReefDose 4 dosing pumps — the peristaltic wear tube that actually pushes liquid through each dosing head. Red Sea recommends replacing it about once a year per head to keep dosing accurate.
Key features
- Genuine Red Sea spare — the same head-tube fitted inside every ReefDose head from new.
- Restores dosing accuracy — a worn tube is the usual cause of a ReefDose that drifts off its calibrated dose over time.
- Sold as a single tube — buy one per head that needs replacing.
- Simple swap — no tools beyond opening the dosing head cover.
Will it fit my doser?
| Fits | Red Sea ReefDose 2 (2 heads) and ReefDose 4 (4 heads) |
|---|---|
| Pack | 1 piece — one head-tube with hose barb |
| Replacement interval | Approximately every 12 months per head (Red Sea's guidance) |
| This SKU | AA2582 |
| Red Sea part number | R35344 |
Red Sea's own spare-parts documentation names this component R35344, not R35334 — the product title's R35334 looks to be a typo. Confirmed against Red Sea's spare-parts support pages and matched consistently across multiple authorised Red Sea retailers.
Not included
Tube only — the dosing head housing, roller assembly and dosing tubing that runs to your sump are not included.
Care and maintenance
Replacing the tube on a fixed yearly schedule, rather than waiting for dosing to visibly drift, is the cheapest insurance against under- or over-dosing a reef tank.
Warranty and delivery
Covered by Red Sea's manufacturer warranty in addition to your rights under Australian Consumer Law. Ships standard parcel post.
Common questions
How many of these do I need?
One per dosing head you're servicing — a 4-part dosing setup on a ReefDose 4 needs four if you're replacing every tube at once.
How do I know it's time to replace mine?
Visible wear, cracking, or a dose that no longer matches what your ReefDose is programmed to deliver are the signs to watch for — Red Sea's default guidance is a yearly swap regardless.
Is this covered by warranty?
Yes, the standard Red Sea manufacturer warranty applies alongside your Australian Consumer Law rights.


