Certified
Years
Clean, Filtered Water
at Every Point of Use
The Bleu Blue Cartridge Filter is a two-stage housing system that finishes what your rainwater harvesting setup starts — polishing groundwater, harvested rainwater or RO output down to sediment-free, great-tasting water, whether you're filtering the whole house or just the kitchen tap.
FB 20 & FB 10
Both share the same triple-cartridge filtration logic. Choose the size that matches where the water needs to be clean.
Whole House Filtration
Designed for filtered/processed water, installed after the first stage of groundwater filtration. Ensures every tap in the house runs free of harmful chlorine residue and other contaminants.
- High flow rate and large capacity to meet whole-house demand
- Reduces chlorine, taste, odour, sediment and other harmful contaminants
- Practical installation, minimal maintenance, easy cartridge replacement
- Food Grade and NSF/ANSI certified materials
Undersink Water Filter
A compact 10″ system installed below the sink as the final polishing stage — after groundwater, harvested rainwater, or reverse osmosis — for water used to cook and wash food.
- Transparent housing makes cartridge condition easy to monitor at a glance
- Reduces chlorine, taste, odour, sediment and other harmful contaminants
- Practical installation, minimal maintenance, easy cartridge replacement
- Food Grade and NSF/ANSI certified materials
Choose Your Cartridge
Both FB 10 and FB 20 housings accept any of the four cartridge types below — stage them together to match your water source.
PP Sediment
Pure polypropylene, highly effective at trapping sand, silt, rust and sediment. Resists bacterial and chemical attack.
CTO Carbon Block
High-quality activated carbon, highly effective at reducing unpleasant taste and odour, chlorine and other contaminants.
GAC Carbon Granular
High-capacity coconut-shell activated carbon granules. Optimal for filtering chlorine, herbicides and pesticides; improves taste, colour and odour.
ION Cation Resin
Resin beads that reduce limescale-forming calcium and magnesium levels, without stripping the water of beneficial minerals your body needs.
10″ ONLY*Cartridge service life depends on usage volume and the quality of your source water.
Where It Fits in Your System
The Blue Cartridge Filter is one stage in a complete Rainworks water harvesting and treatment line.
Specifications
FB 10 and FB 20 compared. Rows marked CONFIRM are pending final figures from the supplier.
| Specification | FB 10 · Undersink | FB 20 · Whole House |
|---|---|---|
| Housing size | 10 inch | 20 inch |
| Typical use | Undersink, point-of-use | Point-of-entry, whole house |
| Housing material | Transparent, Food Grade certified | Opaque, Food Grade certified |
| Compatible cartridges | PP Sediment, CTO, GAC, ION | PP Sediment, CTO, GAC |
| Port / connection size | CONFIRM | CONFIRM |
| Max working pressure | CONFIRM | CONFIRM |
| Max operating temperature | CONFIRM | CONFIRM |
| Rated flow rate | CONFIRM | CONFIRM |
| Certification | WQA · NSF/ANSI · Food Grade | |
| Warranty | 2 years | |
Maintenance
-
1
Check the housing regularlyOn the FB 10's transparent housing, a visible colour change or debris buildup means it's time to swap the cartridge.
-
2
Replace on scheduleSediment cartridges every 2–3 months; carbon and resin cartridges every 3–5 months, depending on usage and source water quality.
-
3
Swap is tool-lightUnscrew the housing sump, lift out the old cartridge, drop in the new one, hand-tighten. No specialist tools required.
Reading the FB 10's Transparent Housing
Unlike the opaque FB 20, the FB 10's clear sump lets you see cartridge condition without opening the unit — useful for undersink installs where checking a hidden cartridge is inconvenient. Discolouration, cloudiness, or visible sediment buildup are your cue to replace.
Certification & Warranty
WQA Certified
Recognised by the Water Quality Association for meeting industry filtration standards.
NSF/ANSI & Food Grade
Housing and cartridge materials certified Food Grade and to NSF/ANSI standards, safe for drinking water contact.
2-Year Warranty
Full 2-year manufacturer warranty on the housing across both FB 10 and FB 20 systems.
Request a Free Onsite Survey
We'll assess your roof area, existing plumbing and water source, then recommend the right Blue Cartridge Filter configuration and cartridge combination for your home or business.