The Filter-Mart 28-2305 Convoluted Tube Element is a general-purpose industrial filter element designed for outside-to-inside flow. Its convoluted paper media provides 246 square inches of filtration area within a slim tubular design.
Rated at 3 micron nominal, the 28-2305 helps remove particulate contamination from compatible industrial process streams. The double-open-end configuration measures 2.50 inches in outside diameter, 1.75 inches in inside diameter, and 31.13 inches in height.
The element has a 75 PSID collapse-pressure rating and can operate at temperatures up to 250°F. Filter-Mart recommends replacement when differential pressure reaches 20 PSID.
Product Specifications
| Filter Element Type | Convoluted Tube Element |
| Product Media | Paper |
| Micron Rating | 3 Micron Nominal |
| Outside Diameter | 2.50″ |
| Inside Diameter | 1.75″ |
| Height | 31.13″ |
| Configuration | Double Open End |
| Flow Direction | Outside-In |
| Filter Area | 246 sq. in. |
| Collapse Pressure | 75 PSID |
| Max Operating Temperature | 250°F |
| Recommended Changeout | 20 PSID Differential Pressure |








