Hayward S311 Lateral Assembly with Bottom Vertical Pipe (SX311DAS) checkvalves Useful for correcting output loss

Useful for correcting output loss from internal wear

Helps restore dependable internal filtration performance

This replacement is especially useful when the original valve is cracked

port orientation

A spa pump supplies the water movement needed for high-demand circulation and therapy performance in a compatible spa system

Hayward S311 Lateral Assembly with Bottom Vertical Pipe (SX311DAS) checkvalves Useful for correcting output lossThe Hayward S311 Lateral Assembly with Bottom Vertical Pipe is a replacement internal filter assembly for compatible Hayward sand filters. The lateral assembly helps distribute water through the filter media and prevents sand from returning to the pool when the internal components are functioning correctly. Replace this assembly when laterals are cracked, damaged, or allowing filter sand to bypass into the pool. Confirm the filter model and internal