Product Name: Stainless Steel RO Vessel 8040 Model NO.: 4040, 8040 Certification: CE, ISO Performance: Sophisticated Filters Style: Tube Motive Force: Pressure Usage: RO Membrane Type: Reverse Osmosis Trademark: oupure Transport Package: Cartons Specification: 4040, 8040 Origin: China HS Code: 8421 Product Description SS RO Vessel:Housing body: SUS 304/ SUS 316End cap material: ABS or SS 304/SS 316Water Inlet: end port and half-clamp closure or side port &tri-clamp colusresize: 4040, 8040 etc.pls see below the spec., more details pls contact us, thank you.