Products / Membrane Housing Price
Indicative 2026 factory price for 4040 and 8040 RO membrane housings in FRP and SS304/316L, the six cost drivers that move a quote, MOQ, lead time and packing.
Buyers who search for a membrane housing price usually want one number. In this industry the honest answer is a band, not a figure: a 4040 or 8040 vessel is quoted from a drawing, and the same nominal size can differ two or three times in cost depending on material grade, pressure rating, wall thickness, end-cap style and the tests the buyer requires.
So that you can budget before you send an inquiry, this page publishes the export price bands we actually quote in 2026: roughly US$15–35 for an FRP 4040 vessel, US$45–95 for FRP 8040, US$55–150 for a stainless steel 4040 housing and US$180–400 for a single-element 8040 stainless vessel. Multi-element 8040 racks run from about US$450 to US$2,000 depending on element count.
All figures are indicative ex-works Linyi (FOB Qingdao) prices for reference only — they are not a binding offer. Send us the element size, number of elements, design pressure, port layout and material, and we return a firm drawing-based quotation, normally within 24 hours on working days.
| FRP 4040, 1 element, 300 PSI | US$15 – 35 / pc |
|---|---|
| FRP 4040, 2–3 elements, 300–450 PSI | US$30 – 60 / pc |
| FRP 8040, 1 element, 300–450 PSI | US$45 – 95 / pc |
| FRP 8040, 2–6 elements, 450–1000 PSI | US$160 – 600 / pc |
| SS304 4040, 1 element, 300 PSI | US$55 – 110 / pc |
| SS316L 4040, 1 element, 300–600 PSI | US$80 – 150 / pc |
| SS304 / SS316L 8040, 1 element, 300–600 PSI | US$180 – 400 / pc |
| SS 8040 multi-element rack (2–7 elements) | US$450 – 2,000 / pc |
| Minimum order quantity | 1 piece (trial order welcome) |
| Quantity discount | about 3–5% from 10 pcs, 6–8% from 50 pcs |
| Lead time, standard sizes | 7–15 working days after deposit |
| Lead time, custom drawing | 20–30 working days |
| Payment terms | 30% T/T deposit, balance before shipment; L/C at sight for large orders |
| Packing | End-cap protection + carton, pallet or plywood case for sea freight |
| Price basis and validity | Ex-works Linyi / FOB Qingdao, valid 30 days, subject to steel and resin index |
Specifications above are our standard range. Custom sizes, materials, ports and pressure ratings are available — please send your working conditions for a tailored offer.
Where most export orders land — and what pushes a vessel into the next bracket
US$15–35. The workhorse of small and medium RO plants: 4-inch, 1–3 elements, 300–450 PSI, side or end port. Lowest cost per element and the fastest item we ship from stock.
US$45–150. Choose FRP 8040 when flow grows but budget is tight; choose stainless 4040 when the duty is sanitary, hot or chemically aggressive and a polished, weldable vessel is required.
US$180–400 per single-element vessel. 8-inch, 300–1000 PSI, SS304/316L shell, mirror polish Ra ≤ 0.4 µm available, with material certificate and hydrostatic test report.
US$450–2,000. 2–7 element 8040 racks, seawater 1000–1200 PSI models, skid-mounted or header-manifolded assemblies, quoted against your P&ID.
Not sure which model fits your project? Send us your flow rate, liquid and filtration requirement — our engineers will recommend the right configuration, free of charge.
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Common questions from overseas buyers about membrane housing price & lead time guide (2026) — click a question to expand.
In 2026 an FRP 4040 housing is typically US$15–35 per piece and a stainless steel 4040 housing US$55–150, ex-works China, for one element at 300 PSI. Stainless 316L, 600 PSI rating, mirror polishing or sanitary certification move the price towards the top of the band. Send the element size, pressure and material for a firm quote within 24 hours.
An FRP 8040 vessel is typically US$45–95 for one element and US$160–600 for a 2–6 element vessel; a single-element stainless 8040 housing is US$180–400. Seawater duty at 1000–1200 PSI, duplex or 904L material, and multi-element racks are quoted individually because the wall thickness and end-cap design change completely.
Usually four hidden differences: (1) shell wall thickness — a 2.0 mm shell and a 3.0 mm shell look identical from outside; (2) material certificate — real 316L with mill certificate versus unspecified stainless; (3) end-cap style and seal quality — U-pin with EPDM versus a cheap clamp with recycled seals; (4) testing — every vessel hydro-tested at 1.5 times design pressure versus spot checking. Ask for the drawing, the mill certificate and the test report before comparing prices.
Yes. We accept trial orders from 1 piece, and we keep common FRP 4040 and 8040 sizes in stock for fast shipment. Quantity discounts start at about 10 pieces (3–5%) and reach 6–8% from 50 pieces. Mixed containers combining housings, filter housings, tanks and cartridges are also welcome.
Standard sizes ship in 7–15 working days after deposit; housings built to your drawing take 20–30 working days. We ship FOB Qingdao by sea for full containers, and by air or courier for samples and urgent single pieces. Packing uses end-cap protection plus carton, pallet or plywood case, with commercial invoice, packing list and certificate of origin for customs clearance.
No — the bands above cover the housing (pressure vessel) only. We can also supply RO membranes, FRP tanks, cartridge and bag filter housings, dosing skids and stainless water tanks, and quote a complete pre-treatment or RO train from your flow rate and feed-water analysis. A combined order normally lowers the total freight cost per unit.
Send five details: element size (4040 or 8040), number of elements, design pressure in PSI or bar, material (FRP / SS304 / SS316L), and port layout or a sketch. Add the destination port and required quantity. With those we return a drawing, a firm price and a lead time — usually the same working day, always within 24 hours.
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