SS membrane housing is the basic component of reverse osmosis equipment and RO system. The material is 304 or 316L stainless steel seamless tubes. Sealing form of end cover includes: clamp, flange, built-in; Water inlet mode covers end port and side port. The length is matched with the number of reverse osmosis membrane components. Inside and outside of the tube is polished.

| Specifications | End port | |
| Available pressure rating (psi) | 300 | |
| Length (No. of elements) | Single Membrane | |
| Housing Material | 304 Stainless Steel or 316L Stainless Steel | |
| Cap Material | ABS, Nylon, Stainless Steel | |
| Closure | Victaulic,Tri-clover, Clamp | |
| Design Pressure | 300PSI | |
| Finishing | Polished or Mirror Polish | |
| Operating Temp | 0-95℃ | |

| Model | L (mm) | L1 (mm) | D (mm) | A | B |
| 4021 | 605 | 545 | 102 | 1/2” 3/4‘’ | 1/2” |
| 4040-1 | 1084 | 1024 | 102 | 1/2” 3/4‘’ | 1/2” |
| 4040-2 | 2100 | 2040 | 102 | 3/4‘’ | 1/2” |
| 4040-3 | 3119 | 2056 | 102 | 3/4‘’ | 1/2” |
| 4040-4 | 4132 | 4072 | 102 | 3/4‘’ | 1/2” |


