Name: China RO 1812 75 Manufacturers Suppliers Factory - Customized RO 1812 75 Wholesale - Puri-guard Water Treatment
Brand: Puri-guard
SKU: 270705219

top RO 1812 75 manufacture

Key Features of RO 1812-75 Residential Membrane:

High Demand & Popularity: Widely used in India, Vietnam, Middle East, and other markets.

Stable Performance: Produces 75 GPD (12 L/h) of permeate with 98–98.5% salt rejection under standard test conditions.

Reliable Quality: A-grade Chinese elements with consistent performance.

Brand Assurance: Puri-guard membranes known for durability and reliability.

Convenient Storage & Handling: Shipped dry for long shelf-life and easy handling.

Products Characteristics

High quality membrane sheet with leading 98-98.5% higher rejection.
Can use in higher feed water TDS within 3000ppm.
Even faster start-up to reach stabilized rejection.
Matured & experienced manufacturing that ensures high-quality elements.
Dry shipping for convenient handling and longer membrane life , easier to keep.
OEM & ODM is available.

🔹 Selection Tips (Very Practical)

When choosing 1812-75:
• ✅ High rejection (>98%) → better water quality
• ✅ Stable flux → consistent output
• ✅ Brand reliability → longer lifespan (2–3 years typical)
• ⚠️ Avoid very cheap membranes → unstable performance & faster fouling

Standard package

FAQ

1. RO 1812 75 can do OEM & ODM?

Yes, of course, we accept the OEM and ODM service, normally our customers from Middle East and India place orders in OEM and in bulk qty. We can use your own design label, tape color, seal-ring color, and includes its cartons to meet local markets.

2. Do you have higher flow but meet 96-97.5% rejection membrane elements?

Yes, this is our regular type also, we use Su-mem brand, or you also can use yours.
In sametime, also with cheaper price.

3. Any other Choice?

I know the markets since 2013, and know some of the areas also have another special requirement. Can directly WA me.

4. Capacity and delivery

We normally can produce 5000pcs/day, but with too many orders, normally our delivery date will be 20 working days after getting deposit based on 20" container.

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Puri-guard^® Element

Active Area

Feed spacer

Thickness (mil)

Permeate Flow

GPD (m³/d)

Testing Pressure

Salt Rejection (%)

ft² (m²)

psi/MPa

1812-75

4.4 (0.41)

28

75 (0.28)

70 (0.48)

98-98.5

1. Permeate flow and salt (NaCl) rejection based on the following standard test conditions. 250 ppm softened tap water, 77°F (25°C), pH 7.5, 15% recovery and the specified applied pressure.

2. Minimum salt rejection:97-97.5%.

3. Single membrane element production flow may vary ±20%.

Puri-guard^® Element	A (±2.0mm)	B (±1.0mm)	C1 (±1.0mm)	C2 (±1.0mm)	D (±0.1mm)
Puri-guard^® Element	In. (mm)	In. (mm)	In. (mm)	In. (mm)	In. (mm)
1812-75	11.74 (298)	1.73 (44)	0.87 (22)	0.87 (22)	0.68OD (17OD)

Operating limit

Diaphragm type	Polyamide Composite Membrane
Maximum operating temperature	113℉ (45℃)
Maximum operating pressure	150 psi(10 bar)
pH range, continuous operation	3-10 ^a
Maximum Influent SDI	5
Free chlorine tolerance	<0.1 ppm ^b

a. When pH > 10, the maximum allowable temperature for continuous operation is 95℉ (35℃).

b. Under certain conditions, the presence of free chlorine and other oxidants will lead to premature failure of membranes. Therefore, it is recommended that the membrane be pretreated to remove residual free chlorine before water comes into contact with membranes.

1812-75 Application and install guidance

Household drinking water systems

Under-sink RO filters

Small office water purifiers

Aquarium/ lab water