Zodiac Jandy DEV48 Grid Assy (R0501300) installation kit The Hammerhead HH1157 head wheel

The Hammerhead HH1157 head wheel set is designed for compatible 21 inch and 30 inch vacuum applications and includes two large wheels

Replacement 120V solenoid valve kit for compatible Rola Chem systems

When the right protective part is missing

and DE3620 filter applications where the upper tank closure needs replacement

supporting cleaner operation and helping protect critical wet-end components

Zodiac Jandy DEV48 Grid Assy (R0501300) installation kit The Hammerhead HH1157 head wheelBuilt for targeted pool equipment repairs, this replacement component helps restore the specific fit and function expected from a Jandy Zodiac system. DEV48 Grid Assy is intended for DE filter service where grid condition directly affects filtration efficiency, water clarity, and internal flow. DE grids can become torn, crushed, oil coated, or brittle over time, allowing debris bypass or reducing the filters ability to hold diatomaceous earth evenly.