Our 8-inch stainless steel housing membrane RO is designed for high-performance reverse osmosis systems in industrial and high-purity water applications. Constructed from premium 304/316L stainless steel, this housing provides excellent mechanical strength, corrosion resistance, and long-term reliability. Its precision-engineered design ensures stable operation under high pressure while minimizing maintenance requirements. For ro membrane housing size, please check the below MODEL information.
Why Choose Our RO Membrane Housing
This 8-inch standard ro membrane housing combines strength, reliability, and precision engineering to ensure optimal performance in demanding RO systems. Ideal for engineers, system integrators, and water treatment professionals, it delivers a dependable solution for industrial and high-purity water applications.
If you need RO membrane housing price, just send us inquiry.
DETAILS
MODEL

| 8" Side-in/End-out 400Psi | |||||
|---|---|---|---|---|---|
| Model | L (mm) | L1 (mm) | D (mm) | A (in) | B (out) |
| 3-8040 | 655 | 511 | Ø62 | 1/2" | 1/4" |
| 3-8080 | 1136 | 994 | Ø62 | 1/2" | 3/8" |
| 3-80120 | 668 | 515 | Ø102 | 3/4" | 1/2" |
| 3-80160 | 1148 | 998 | Ø102 | 3/4" | 1/2" |
| 3-80200 | 2164 | 2014 | Ø102 | 3/4" | 1/2" |
| 3-80240 | 3180 | 3030 | Ø102 | 3/4" | 1/2" |
| 3-40160 | 4196 | 4046 | Ø102 | 3/4" | 1/2" |

| 8" End-in/End-out 300Psi | ||||
|---|---|---|---|---|
| Model | L (mm) | D (mm) | A (in) | B (out) |
| 6-8040 | 1232 | Ø203 | 1"-1/2" | 1" |
| 6-8080 | 2248 | Ø203 | 1"-1/2" | 1" |
| 6-80120 | 3264 | Ø203 | 1"-1/2" | 1" |
| 6-80160 | 4284 | Ø203 | 1"-1/2" | 1" |
| 6-80200 | 5300 | Ø203 | 1"-1/2" | 1" |
| 6-80240 | 6316 | Ø203 | 1"-1/2" | 1" |

| 8" Side-in/End-out 300Psi | |||||
|---|---|---|---|---|---|
| Model | L (mm) | L1 (mm) | D (mm) | A (in) | B (out) |
| 7-8040 | 1288 | 1101 | Ø203 | 1 1/2" | 1" |
| 7-8080 | 2304 | 2117 | Ø203 | 1 1/2" | 1" |
| 7-80120 | 3320 | 3133 | Ø203 | 1 1/2" | 1" |
| 7-80160 | 4336 | 4149 | Ø203 | 1 1/2" | 1" |
| 7-80200 | 5352 | 5165 | Ø203 | 1 1/2" | 1" |
| 7-80240 | 6368 | 6181 | Ø203 | 1 1/2" | 1" |

| 8" Side-in/End-out 1000Psi -V type | |||||
|---|---|---|---|---|---|
| Model | L (mm) | L1 (mm) | D (mm) | A (in) | B (out) |
| 8-8040-V | 1359 | 1109 | Ø203 | 1 1/2" | 3" |
| 8-8080-V | 2375 | 2135 | Ø203 | 1 1/2" | 3" |
| 8-80120-V | 3391 | 3151 | Ø203 | 1 1/2" | 3" |
| 8-80160-V | 4407 | 4167 | Ø203 | 1 1/2" | 3" |
| 8-80200-V | 5423 | 5183 | Ø203 | 1 1/2" | 3" |
| 8-80240-V | 6439 | 6199 | Ø203 | 1 1/2" | 3" |

| 8" Side-in/End-out 1000Psi -T type | |||||
|---|---|---|---|---|---|
| Model | L (mm) | L1 (mm) | D (mm) | A (in) | B (out) |
| 8-8040-T | 1359 | 1109 | Ø203 | 1 1/2" -3" | 1" -1/2" |
| 8-8080-T | 2375 | 2135 | Ø203 | 1 1/2" -3" | 1" -1/2" |
| 8-80120-T | 3391 | 3151 | Ø203 | 1 1/2" -3" | 1" -1/2" |
| 8-80160-T | 4407 | 4167 | Ø203 | 1 1/2" -3" | 1" -1/2" |
| 8-80200-T | 5423 | 5183 | Ø203 | 1 1/2" -3" | 1" -1/2" |
| 8-80240-T | 6439 | 6199 | Ø203 | 1 1/2" -3" | 1" -1/2" |

| 8" Side-in/End-out 600Psi -V type | |||||
|---|---|---|---|---|---|
| Model | L (mm) | L1 (mm) | D (mm) | A (in) | B (out) |
| 9-8040-V | 1301 | 1071 | Ø203 | 1 1/2" -2" | 1" |
| 9-8080-V | 2317 | 2087 | Ø203 | 1 1/2" -2" | 1" |
| 9-80120-V | 3333 | 3103 | Ø203 | 1 1/2" -2" | 1" |
| 9-80160-V | 4349 | 4119 | Ø203 | 1 1/2" -2" | 1" |
| 9-80200-V | 5365 | 5135 | Ø203 | 1 1/2" -2" | 1" |
| 9-80240-V | 6381 | 6151 | Ø203 | 1 1/2" -2" | 1" |

| 8" Side-in/End-out 600Psi -T type | |||||
|---|---|---|---|---|---|
| Model | L (mm) | L1 (mm) | D (mm) | A (in) | B (out) |
| 9-8040-T | 1301 | 1071 | Ø203 | 1 1/2" -2" | 1.5" |
| 9-8080-T | 2317 | 2087 | Ø203 | 1 1/2" -2" | 1.5" |
| 9-80120-T | 3333 | 3103 | Ø203 | 1 1/2" -2" | 1.5" |
| 9-80160-T | 4349 | 4119 | Ø203 | 1 1/2" -2" | 1.5" |
| 9-80200-T | 5365 | 5135 | Ø203 | 1 1/2" -2" | 1.5" |
| 9-80240-T | 6381 | 6151 | Ø203 | 1 1/2" -2" | 1.5" |
APPLICATION
8-Inch Flanged Stainless Steel RO Membrane Housing
- Advantages: Flanged connection provides excellent sealing, suitable for high-pressure operation.
- Material: 304/316L stainless steel with EPDM sealing ring.
- Applications: Industrial water treatment, seawater desalination.
8-Inch Clamp-Type RO Membrane Housing
- Advantages: Quick assembly and disassembly, easy maintenance, saves time.
- Material: 304/316L stainless steel with FKM (fluororubber) sealing.
- Applications: Pharmaceutical and chemical industries.
8-Inch Union-Type RO Membrane Housing
- Advantages: Compact structure, ideal for space-limited applications.
- Material: 316L stainless steel with high-pressure resistant sealing.
- Applications: Electronics ultrapure water systems, high-end manufacturing.
8-Inch Internal-Type RO Membrane Housing
- Advantages: Integrated design reduces external leakage risk, aesthetically pleasing and durable.
- Material: 316L stainless steel with food-grade sealing.
- Applications: Food processing, drinking water systems.
FAQ
What is the typical production lead time for your membrane housings?
It depends on the quantity. For regular orders, the production lead time is around 15 days (excluding items that are in stock).
What is the pressure rating of your membrane housings?
Available pressure ratings include:
300 PSI
450 PSI
600 PSI
1000 PSI
1200 PSI
(Other custom pressure ratings can be provided based on application requirements.)
What materials are used?
Shell: Fiber-reinforced epoxy resin (FRP)
Inner liner: High-strength polyethylene (PE) or polyurethane
End caps & adapters: Stainless steel / Engineering plastics
These materials ensure corrosion resistance, light weight, and long service life.
Can the membrane housing be used in seawater desalination systems?
Yes. We offer high-pressure models (1000 PSI and above) suitable for seawater RO systems. The smooth inner surface also helps reduce pressure loss and fouling.
How do I install the membrane elements in the housing?
Typically:
Open the end cap
Insert thrust ring
Lubricate O-rings
Push membrane element in direction of concentrate outlet
We provide detailed installation manuals upon shipment.
Do you have any additional services?
- Yes, we provide a free goods inspection service. If your supplier is within 200 km of our company (Chengdu), even the transportation cost will be covered by us. If the distance is more than 200 km, only the transportation and hotel costs will be borne by you.
Can all your products accept OEM service?
Yes, for each item, there will be a minimum order quantity, and then we can produce an OEM order for you.
Can you source some other related products for us?
Yes, whether they are water- or wastewater-related products, we can source them for you. We have been working in the water and wastewater fields for more than 10 years.







