The Caleffi 508100A is a replacement hygroscopic cartridge for Caleffi 5080 series HYGROCAL automatic hygroscopic air vents. It is a service part rather than a complete air vent. Sold in quantities of 25.
Best for restoring an installed HYGROCAL vent without replacing the whole device.
Specifications sourced from Caleffi North America technical literature. Last reviewed July 2026.
Key Features
Replacement Element Only
Supplied as the replacement element for Caleffi 5080 series HYGROCAL automatic hygroscopic air vents. It is not a complete assembly.
Bulk Packaging
Sold in quantities of 25, matching how Caleffi supplies this service part.
Technical Specifications
| Function | Automatic float air vent |
| Series | Caleffi HYGROCAL |
| Packaging | Sold in quantities of 25 |
| Compatibility | Caleffi 5080 series HYGROCAL automatic hygroscopic air vents |
| Shipping Weight | 0.5 lb |
Documentation
Related Products
- Caleffi 508013A : HYGROCAL Air Vent 1/8" NPT Threaded
- Caleffi 290030 : Full-Port Isolation Ball Valve 1" M x F Metric G Union
- Caleffi 290031 : Full-Port Isolation Ball Valve 1" M x F Metric G Union, Extended Stem
- Caleffi 502420 : ROBOCAL Air Vent 1/4" Metric Thread
Frequently Asked Questions
What is Caleffi 508100A?
Caleffi 508100A is a replacement element for Caleffi 5080 series HYGROCAL automatic hygroscopic air vents. It is a service part, not a complete air vent, and installs into a device already in the system. Sold in quantities of 25.
What is the warranty on Caleffi 508100A?
Caleffi covers this product under its standard two-year limited warranty against defects in material and workmanship from the date of shipment. ZOT Supply is an authorized Caleffi distributor.
- Product Type:
- Replacement Cartridge
- Series:
- HYGROCAL
- Compatibility:
- Caleffi 5080 series HYGROCAL automatic hygroscopic air vents
