Good Cole Parmer MasterFlex L/S Part number 77253-00 / Ismatec Part Number 114675 Cytoflow 2-Roller Pump Head for Precision Tubing. The Pump Head is good, but it is missing a plastic cover, as well as the tubing clamps.
This pump head sells new directly from Cole-Parmer for almost $1800.00!!
Specifications & Description
| Model | 77253-00 |
| Rollers | 2 |
| Max. flow rate | 5100 ml/min |
| Housing material | Anodized aluminium |
| Rotor Material | Aluminum |
| Height | 115 mm (4.5") |
| Length | 89 mm (3.5") |
| Width | 115 mm (4.5") |
| Gear ratio | 1:1 |
| No. of Channels | 1 |
| Occlusion | Fixed |
| Open-head sensor | No |
| Optimum RPM range | 0.02 - 600 rpm |
| Pump series | L/S |
| Tubing retention | Manual |
| Tubing sizes accepted | L/S® 16, L/S 25, L/S 17, L/S 18 |
| Volume per revolution with L/S 16 tubing | 1.7 ml |
| Volume per revolution with L/S 17 tubing | 6.1 ml |
| Volume per revolution with L/S 18 tubing | 8.6 ml |
| Volume per revolution with L/S 25 tubing | 3.9 ml |