Walchin WL-TW-1812-75 Household Reverse Osmosis M | RFQ Sourcing Details
Filtration And Membranes · Quote on request
This is a product procurement detail page: check specs, images, category context and related sourcing paths before sending an RFQ.
Product specs
Buyer's Digest
Use this page as a product-first sourcing checkpoint before sending an RFQ. Category: Filtration And Membranes. Confirm application fit, capacity, materials, destination, lead time and compliance requirements before comparing suppliers.
Original product description
The WL-TW-1812-75 is a spiral-type reverse osmosis membrane element intended for domestic water purification equipment. It is identified as an 1812-format household membrane with a listed diameter of 1.67 in (42.5 ±0.5 mm) and length of 11.74 in (298 mm). The membrane material is specified as polyamide.
Under the stated test conditions, the element has a listed permeate flow rate of 75 GPD (11.8 L/h) and a stable salt rejection rate of 98%. These figures were measured at 60 psi (4.1 bar), 25°C, a 500 ppm test-solution concentration, pH 7.5–8, and 35% recovery.
Actual operating results may differ when feed-water composition, temperature, pressure, recovery, pretreatment, or system configuration differs from those test conditions. The element is presented as a replacement or component for household reverse osmosis purifiers.
Available colors are listed as blue, black, white, yellow, and green, with customization also indicated. Standard packing is stated as 25 pieces per carton. The listed production capacity is 500,000 pieces per year.
Procurement review: Buyers should confirm the exact model marking before ordering because the supplied information uses both TW-1812-75 and WL-TW-1812-75.
The product heading also refers to both 75 GPD and 80 GPD, while the detailed performance table specifies 75 GPD;the required rated output should therefore be confirmed in the purchase specification.
Buyers should also verify housing fit, connector and seal requirements, permitted feed-water limits, pretreatment needs, operating-pressure range, storage conditions, service life, replacement interval, quality documentation, inspection criteria, customization details, and the warranty or after-sales terms applicable to the intended order.
Walchin | Applications and Buyer Notes
Walchin is organized as a sourcing-ready Filtration And Membranes reference. The page combines visible product or company data with structured procurement cues so buyers can compare application fit, specifications, quantity, quality requirements and lead-time
Applications
- Initial shortlist building for related product or supplier options.
- Specification and application fit review before bulk purchasing.
- Category, keyword and detail-page comparison before sending an RFQ.
Key specifications
- Category
- Filtration and MembranesBased on visible page data; confirm exact value in the RFQ.
- Unit
- setBased on visible page data; confirm exact value in the RFQ.
- Model
- WL-TW-1812-75;also listed as TW-1812-75Based on visible page data; confirm exact value in the RFQ.
- Length
- 11.74 in (298 mm)Based on visible page data; confirm exact value in the RFQ.
- Packing
- 25 pieces per cartonBased on visible page data; confirm exact value in the RFQ.
- Diameter
- 1.67 in (42.5 ±0.5 mm)Based on visible page data; confirm exact value in the RFQ.
- Trademark
- WalchinBased on visible page data; confirm exact value in the RFQ.
- Product type
- Household reverse osmosis membrane elementBased on visible page data; confirm exact value in the RFQ.
Buyer tips
- State quantity range and split-delivery needs before price comparison.
- Add certification, material or inspection standards when they affect acceptance.
- For time-sensitive projects, include target arrival date and destination.
- For special applications, describe operating condition, installation environment and duty cycle.
FAQ
What should buyers confirm first?
Confirm application, specification, quantity, destination and lead-time requirements before comparing offers.
Can buyers inquire when specs are incomplete?
Yes. Add model, material, size, use case and inspection needs in the RFQ to make replies comparable.
How should this listing be evaluated?
Check title, category, specifications and related keywords against the actual sourcing requirement.
Source mix: ugc
Key specifications
Product sourcing keywords
These terms come from the title, visible copy and specifications, and link into matching aggregate pages.
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