The complete refill for a 3-stage Big Blue whole-house system: sediment, GAC, and carbon block CTO — the classic full stack, matched and boxed as one set, for less than buying the three cartridges separately.
What’s in the set
1 × Sediment (SED5-10BB)
Stage 1 · 5 µm melt-blown PP
Captures dirt, silt, sand, rust & scale particles up front.
1 × GAC Carbon (GAC-10BB)
Stage 2 · 25 µm granular carbon
High-flow bulk reduction of chlorine, taste, odor & VOCs.
1 × Carbon Block (CTO-10BB)
Stage 3 · 10 µm carbon block
Fine polishing stage — final pass on taste, odor & clarity.
Covers
All 3 stages · 3-housing system
Micron
5 → 25 → 10 µm nominal
Life
SED 3–6 mo · carbons 3–12 mo
Fits
Standard Big Blue housings
What it does
This set refills the classic 3-stage Big Blue whole-house configuration — the most complete standard-cartridge treatment for municipal water. Each stage has one job, in order: sediment catches the grit, GAC does the heavy chemical lifting on chlorine, taste, odor, and VOCs at high flow, and the carbon block gives water its final fine polish before it enters your home’s plumbing.
The stages are matched by design. The sediment cartridge protects both carbon stages from particulate; the free-flowing GAC bed takes the bulk chlorine load so the tighter carbon block isn’t exhausted doing it — which is exactly why a 3-stage stack outlasts and outperforms a single carbon cartridge doing everything alone.
All three fit standard 10″ × 4.5″ Big Blue housings. Install in flow order — sediment first, GAC second, carbon block last — and one filter change restores the whole system to day-one performance.
Key benefits
- ✓ One order = a complete 3-stage filter change
- ✓ Costs less than buying the three cartridges separately
- ✓ Removes sediment, rust & scale particles (Stage 1)
- ✓ Double carbon treatment — bulk GAC + fine-polish block
- ✓ Better-tasting, clearer water at every tap in the house
- ✓ Stock up with quantity pricing — deepest discounts at 5+ sets
Specifications
|
Stage 1 — Sediment |
Stage 2 — GAC |
Stage 3 — Carbon Block |
| Cartridge |
SED5-10BB |
GAC-10BB |
CTO-10BB |
| Media |
Melt-blown polypropylene |
Granular activated carbon |
Activated carbon block |
| Micron (nominal) |
5 micron |
25 micron |
10 micron |
| Typical life |
3–6 months |
3–12 months |
3–12 months |
| Nominal size |
10″ × 4.5″ — fits standard Big Blue housings |
| Operating temperature |
40 °F – 100 °F (cold water use) |
| Max pressure |
90 PSI |
| Brand |
MyWaterClub (made for MyWaterClub) |
| Set SKU |
SGC-10BB (contains 1× SED5-10BB + 1× GAC-10BB + 1× CTO-10BB) |
Helps reduce
What this set targets — and what it isn’t built for.
Dirt, silt & sand
Rust & scale particles
Chlorine
Bad taste & odor
Organic chemicals (VOCs)
Chloramine
Iron / H₂S
Hardness / dissolved solids
Is this the right set for your system?
| Your situation |
Best choice |
| 3-housing Big Blue system on city water (chlorine) |
This set (SGC-10BB) ✓ |
| 2-housing system (sediment + one carbon) |
SC-10BB dual-stage set (SED5 + CTO) |
| City water on chloramine (check your utility’s report) |
Swap the GAC for CAT-10BB catalytic carbon |
| Well water with heavy, visible sediment |
Swap Stage 1 for SED5-PLT-10BB washable pleated |
| Want maximum taste polishing |
Upgrade Stage 3 to CACB-10BB premium coconut block |
Good to know before you buy
Install in flow order. Sediment in the FIRST housing (water inlet side), GAC second, carbon block third. Out of order, the carbon stages clog with grit and die early.
The sediment stage may need changing more often. On dirtier water the sediment cartridge (3–6 months) can wear out before the carbons (3–12 months). If that’s your pattern, add a couple of single SED5-10BB cartridges to your order — quantity pricing on singles covers it.
Flush on install. Run water to drain for a few minutes after a change — new carbon releases harmless fines at first, and the GAC especially so.
Please note: Filter life and reduction performance depend on your water chemistry, pressure, and usage, so results vary from home to home. This product is not certified to treat water of unknown quality and is not a substitute for testing your water. Descriptions use general, qualified language and are not health claims. When in doubt, test your water or ask us and we’ll help you build the right stack.
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