Blue-White 3/8" OD Tubing SS Bobbin Flow Indicator (FI-100S-6V) generic Units like this are useful

Units like this are useful because they help manage system behavior tied to heat-related functions and can play an important role in overall bath equipment performance

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

and this Pleatco version uses the PA131 reference with C-7494

The Waterway 315-1500 Viper spa pump volute is designed for compatible 2-1/2 inch applications

supporting dependable accessibility and routine equipment use

Blue-White 3/8" OD Tubing SS Bobbin Flow Indicator (FI-100S-6V) generic Units like this are usefulThe 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