Residential Water Filtration Systems
U-type 3- / 4-stage, Snap-on 4-stage and 5-stage RO direct-flow — full installation kits, OEM ready. FOB Ningbo from USD 35/unit, MOQ from 50 units, 25–35 day lead time.
U-type 3-stage — Entry-level flow filtration
The U-type 3-stage system uses a PP–CTO–T33 cartridge configuration, mirroring the dominant Russian-market under-sink flow filter design. U-type quick-connect (H-300 / 4FC compatible) cartridges allow replacement with no water shut-off — the easiest entry-level system for end users to live with.
Includes full installation kit: faucet, tee, tubing cutter, expansion screws, PE tubing, manual. FOB Ningbo from USD 35/unit (MOQ 50), with customisable housing colors, logo and retail packaging.
- ✓ Configuration: PP–CTO–T33 (3-stage)
- ✓ Connector: U-type quick-connect H-300 / 4FC
- ✓ Lifetime: 6,000–8,000 L per cartridge
- ✓ Install kit: faucet / tee / cutter / screws / PE tubing
- ✓ OEM: colors / logo / retail packaging
U-type 4-stage — with UF membrane
The U-type 4-stage system adds a UF ultrafiltration membrane to the 3-stage configuration, achieving filtration 0.01–0.2 µm and 99.99% bacterial retention. Configuration PP–CTO–UF–T33 — the volume leader for distributors targeting end users with stricter water-quality requirements.
- ✓ Configuration: PP–CTO–UF–T33 (4-stage)
- ✓ UF: 0.01–0.2 µm, 99.99% bacterial retention
- ✓ Connector: U-type quick-connect
- ✓ FOB: from USD 45/unit (MOQ 50)
- ✓ Cartridge set ships independently as consumable
Snap-on 4-stage — Push-click replacement
The Snap-on 4-stage system uses a Korean snap-on connector — one push-click and the cartridge is changed (no rotation, no tools). Same PP–CTO–UF–T33 configuration as the U-type 4-stage, but with a more compact body that fits tight under-sink spaces.
- ✓ Configuration: PP–CTO–UF–T33 (4-stage)
- ✓ Connector: Korean snap-on
- ✓ Aquaphor K-series compatibility available at orders 3,000+ units
- ✓ Retail-friendly: cartridge replacement demos in-store
5-stage RO — Our new flagship
The 5-stage reverse-osmosis system uses a PP–GAC–CTO–RO–T33 configuration with 50 / 75 / 100 GPD membrane options, salt rejection ≥ 95% and filtration 0.0001 µm — effective against bacteria, viruses and heavy metals.
Mass production begins in 2026. Functionally targeted at mainstream Russian-market RO units (such as Aquaphor Morion). FOB from USD 85/unit (MOQ 100), giving distributors a strong premium-tier retail SKU.
- ✓ Configuration: PP–GAC–CTO–RO–T33 (5-stage)
- ✓ RO membrane: 50 / 75 / 100 GPD options
- ✓ Salt rejection ≥ 95%, filtration 0.0001 µm
- ✓ Full OEM: colors, logo, packaging, multilingual manuals
4 flagship systems comparison
Specify the series on your PO. All systems ship with the full installation kit and are OEM-ready.
| Series | Cartridge configuration | Connector | FOB from | MOQ | Market position |
|---|---|---|---|---|---|
| U-type 3-stage | PP–CTO–T33 | U-type quick-connect | USD 35 | 50 units | Entry / mass-market |
| U-type 4-stage | PP–CTO–UF–T33 | U-type quick-connect | USD 45 | 50 units | Volume leader / mid-tier |
| Snap-on 4-stage | PP–CTO–UF–T33 | Korean snap-on | USD 48 | 50 units | Compact / retail-friendly |
| 5-stage RO | PP–GAC–CTO–RO–T33 | U-type quick-connect | USD 85 | 100 units | Premium / flagship |
* Prices shown are indicative starting prices; actual quotes depend on order volume, customisation and shipping. Contact our sales team for specifics.
Complete product gallery
15 system and cartridge-set shots. Click any photo for full specs.
Quote / Sample / OEM project
Sales manager replies within 2 working hours with a formal quote (FOB Ningbo) including MOQ and lead time. Full OEM available on every system.
