Jandy O-Ring, Energy Filter Replacement, R-Kit R0374500 Ring Proper black algae treatment matters

Proper black algae treatment matters because it helps:

Powerful Formula Designed for Spa Systems

Prevents Internal Leaks & Damage – Replaces worn or malfunctioning relief assemblies that cause pressure-related issues

This makes the LN4100 well-suited for residential pools and routine service routes where speed and control matter

If you’re unsure whether pumice is appropriate for your pool surface

Jandy O-Ring, Energy Filter Replacement, R-Kit R0374500 Ring Proper black algae treatment mattersThe Jandy R0374500 Energy Filter O Ring Replacement Kit is a genuine OEM seal kit designed for Jandy Energy Filter systems. Proper O ring sealing is critical to maintaining internal filter pressure, preventing water leaks, and ensuring consistent filtration performance. Over time, O rings lose elasticity due to heat, pressure cycles, and chemical exposure. Flattened, brittle, or cracked seals can allow air intrusion or water leakage at the tank seam.