Product Overview

The Pentair AK110 Pool and Spa Chemical Controller Top, Flow Cell, with Flow Switch and Nylon Plugs | 754001990 is a replacement chemical controller assembly component designed for select Pentair AK110 chemical controller systems.

This replacement top and flow cell assembly helps restore proper chemical controller flow monitoring and sample water movement through the controller. It includes the flow cell, flow switch, and nylon plugs, making it a practical repair part when the existing flow cell assembly is cracked, worn, leaking, or no longer reading flow correctly.

Ideal For

Pool service professionals, commercial pool operators, aquatic facilities, and equipment rooms using compatible Pentair AK110 pool and spa chemical controller systems. This part is best used when servicing or repairing the controller’s flow cell area instead of replacing the entire chemical controller system.

Key Features

Replacement Flow Cell Assembly

Designed to replace the top and flow cell section on compatible Pentair AK110 chemical controller setups.

Includes Flow Switch

The included flow switch helps the controller verify water movement through the flow cell, which is important for proper chemical monitoring and safe controller operation.

Includes Nylon Plugs

Comes with nylon plugs needed for the flow cell assembly, helping complete the repair or replacement process.

Supports Chemical Controller Operation

The flow cell allows pool water to pass through the controller sensing area so the system can monitor water chemistry through compatible probes and controller components.

OEM-Style Replacement Part

Designed as a direct replacement component for compatible Pentair AK110 chemical controller applications.

Service-Friendly Repair Option

Useful when the controller body or flow cell components are damaged, leaking, or worn, while the rest of the controller system remains usable.

Benefits

The Pentair 754001990 replacement top and flow cell assembly helps keep an AK110 chemical controller operating properly by restoring the water sampling area and flow switch function. A damaged or leaking flow cell can prevent accurate chemical monitoring, trigger flow-related errors, or cause the controller to stop feeding chemicals.

Replacing the affected assembly can help extend the life of the existing controller system and reduce downtime for pools that rely on automated chemical control. This is especially important for commercial pools, spas, and high-use facilities where consistent water chemistry is critical.

Specifications

Customer-Facing Q&A

Q: What is Pentair part number 754001990?
A: Pentair 754001990 is a replacement AK110 chemical controller top and flow cell assembly with flow switch and nylon plugs.

Q: What does this part include?
A: It includes the controller top, flow cell, flow switch, and nylon plugs.

Q: What system does this fit?
A: It is designed for select Pentair AK110 pool and spa chemical controller systems. Confirm your exact controller model before ordering.

Q: When should this part be replaced?
A: Replace it if the flow cell is cracked, leaking, damaged, worn, or if the flow switch assembly is no longer functioning properly.

Q: Does this include chemical probes or sensors?
A: No. This listing is for the top, flow cell, flow switch, and nylon plugs. Chemical probes or sensors are typically sold separately unless specifically stated otherwise.

Q: Can I install this myself?
A: Installation should be handled by a qualified pool professional, especially because chemical controllers involve water flow, electrical components, chemical feed systems, and sensor calibration.

Q: Is this for residential or commercial pools?
A: It may be used anywhere a compatible Pentair AK110 controller is installed, but AK110-style chemical controllers are commonly used in commercial, semi-commercial, and professional pool applications.