Blue-White 3/8" OD Tubing SS Bobbin Flow Indicator (FI-100S-6V) generic A pressure gauge like this

A pressure gauge like this is valuable because it gives the user a clear way to monitor system pressure

dual-stream hydrotherapy feel

and EcoM3 V pump applications

This type of component is especially useful when a spa setup needs dual-pump support with blower and ozone functions

Blue-White 3/8" OD Tubing SS Bobbin Flow Indicator (FI-100S-6V) generic A pressure gauge like thisThe Blue White bobbin flow indicator is designed for compatible chemical feed applications where visible confirmation of flow is needed. A flow indicator is useful because it helps the operator see whether fluid is moving through the line, supporting troubleshooting and more dependable feed system monitoring. This replacement is especially useful when the original indicator is damaged, leaking, cloudy, or no longer showing flow clearly. Matching the