 
                | Chemistry | C18 | 
| Separation Mode | Reversed Phase | 
| Particle Substrate | Silica | 
| pH Range Min | 1 pH | 
| pH Range Max | 8 pH | 
| Maximum Pressure | 18000 psi (1240 Bar) | 
| Endcapped | Yes | 
| Silanol Activity | Low | 
| Particle Shape | Spherical | 
| Particle Size | 3.5 µm | 
| Endfitting Type | Waters | 
| Pore Size | 100 Å | 
| Format | VanGuard Cartridge | 
| Surface Area | 230 | 
| System | HPLC | 
| Particle Technology | HSS | 
| USP Classification | L1 | 
| Inner Diameter | 2.1 mm | 
| Length | 5 mm | 
| Carbon Load | 15 % | 
| UNSPSC | 41115709 | 
| Brand | XSelect | 
| Product Type | Guards | 
| Units per Package | 3 pk | 
