Water Filter Cartridge Manufacturer — OEM Factory Direct from China
TL;DR: Ningbo XZH is an OEM water filter cartridge and RO system manufacturer in Cixi, Ningbo since 2009. Monthly capacity ~100,000 units. Aquaphor-compatible, quick-connect, and standard 10" cartridges. Complete RO systems from $35 FOB. NSF-certified raw materials. Made-in-China Verified supplier. MOQ from 50 units.
16+
Years Manufacturing
100K
Units/Month Capacity
30+
Countries Exported
50 pcs
Min Order (Systems)
Water Filter Product Lines
Seven product categories covering residential, commercial, and specialty water filtration — all manufactured in-house.
Aquaphor-Compatible Cartridges
K2/K3/K5/K7/K7M/KH Series | Snap-On
Direct replacement cartridges for Aquaphor water filtration systems. PP sediment, GAC, CTO carbon block, and RO membrane options. Snap-on quick-change design.
Quick-Connect Cartridges
U-Type & I-Type | H-300/4FC/H-104/4SI
Push-fit quick-connect cartridges in PP, GAC, CTO, T33, UF, and RO configurations. Tool-free 3-second replacement. Fits most Asian and European systems.
Korean-Style Snap-On Cartridges
Push-Click Format | Multi-Stage
Snap-on filter cartridges in Korean style push-click replacement format. Sediment, carbon, UF, and RO stages available for compact under-sink systems.
Complete RO Systems
3-Stage to 5-Stage | $35–$85 FOB
Fully assembled reverse osmosis systems with tank, faucet, and fittings. 50/75/100/400/600 GPD membrane options. Private label packaging included.
Standard 10" Cartridges
SL (Slim) & BB (Big Blue) | PP/CTO/GAC/UDF/UF
Universal 10-inch replacement cartridges in standard slim and big blue formats. Compatible with most global water filter housings. MOQ 1,000 pcs.
Shower & Bathroom Filters
5 Series (B/C/D/E/F) | Vitamin C/KDF/Ceramic
Compact shower filters with multiple media options: Vitamin C dechlorination, KDF-55 for heavy metals, ceramic for sediment. Retail-ready packaging.
Commercial / HoReCa Systems
3M / Everpure Compatible | Quick-Connect
Commercial-grade water filtration for restaurants, cafes, and vending machines. Compatible with 3M and Everpure connection standards.
Why Choose XZH as Your Water Filter Manufacturer
Water Filter Manufacturing FAQ
What is the MOQ for water filter cartridges?
MOQ for standard cartridges (10" PP, CTO, GAC) starts at 1,000 pieces. Quick-connect and snap-on cartridges start at 500 pieces. Complete RO systems start at 50 units. Custom labeled products require 2,000+ pieces. Shower filters start at 500 units. Tiered pricing available for container quantities (20GP/40HQ).
Can you produce cartridges compatible with specific brands?
Yes. We manufacture cartridges compatible with Aquaphor (K-series snap-on), 3M (quick-connect), Everpure (commercial quick-connect), and standard 10" slim/big blue formats that fit most global filter housings. We can also reverse-engineer compatibility with other brand systems — send us a sample or dimensions and we will develop a matching cartridge.
What certifications do your water filters have?
Our products use NSF-certified raw materials (activated carbon, PP meltblown, RO membranes). The factory holds ISO 9001:2015 certification. We are a Made-in-China Verified supplier since 2010 (factory audit). Halal certification is available for products going to Middle Eastern markets. Individual product certifications (NSF/ANSI 42, 53, 58; WQA Gold Seal) can be arranged for OEM customers at their cost.
What is the lead time for water filter orders?
Stock products: 7-15 days. Standard OEM orders (existing molds, custom label): 20-30 days. Custom product development (new cartridge format): 45-60 days including mold development. RO systems assembly: 15-25 days. All shipments FOB Ningbo. Full container load (FCL) and LCL available.
Do you offer complete RO system assembly?
Yes. We assemble complete reverse osmosis systems from 3-stage to 5-stage configurations. Options include: membrane capacity (50/75/100/400/600 GPD), with or without booster pump, tankless or with pressure tank, display faucet options, and private label packaging. FOB price range: $35-$85 depending on configuration. Systems are pressure-tested and packaged ready for retail or distribution.
Request Water Filter Pricing
Specify your cartridge type, compatibility, quantity, and certification needs. We respond within 24 hours with pricing and samples.
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