The Blue-White 70000-638 Tube Indicator is a transparent glass-float flow indicator pre-installed on 5 feet of 3/8″ flexible tubing — ideal for chemical-feed, hypochlorinator, or dosing systems. As liquid flows, the internal float rises and falls, giving a clear visual confirmation of fluid movement. This handy accessory helps technicians and pool/spa owners verify operation at a glance, troubleshoot flow issues, or ensure dosing is active.

Features:

• Glass-float flow indicator with 5' of 3/8" OD tubing
• Provides simple, visual confirmation of fluid flow
• Ideal for chemical-feed, pool/spa, or water-treatment systems
• Helps detect pump failures, suction leaks, or tubing blockages

• FlexFlo Peristaltic Pumps: 
• 2-year warranty applies to standard peristaltic pump models. 
• For select models such as the M4, a 5-year warranty is offered. 
• A2A System: 
• Covered by a 2-year warranty from the date of factory shipment. 
• Maintenance Requirements: 
• Proper cleaning and maintenance of pumps (specifically pump heads) is essential; failure to do so will void the warranty.