The K38 is a cotton wick seal with an additional lip design, making it ideal for cylinders with small housing dimensions. The recessed groove design of the K38 generates greater preload force, which is an advantage in low-pressure, long-stroke cylinders.
| Advantages | Application Fields |
| Good sealing performance under both high and low pressure conditions | Mobile machinery |
| Auxiliary sealing lip provides additional protection against ingress of dust particles | Industrial cylinders |
| High wear resistance | Telescopic cylinders |
| Easy installation into closed grooves | |
| Suitable for small housing dimensions |

