Watts 2188 Anti Scale System 6 Gpm 3/4 Inch Fpt

Product Description

The WATTS 2188 is an inline anti-scale water treatment system designed to reduce scale buildup in residential and light commercial plumbing and water heating applications. It features 3/4-inch female pipe thread (FPT) connections on both ends and measures 23.5 inches in length, making it suitable for installation on supply lines serving water heaters, boilers, and other hydronic or potable water equipment. The unit is rated for a flow rate of 6 GPM, supporting typical whole-system or point-of-entry service demands. Licensed plumbers and HVAC technicians install this device as a protective measure to extend the service life of downstream equipment by inhibiting mineral scale deposits.

The WATTS 2188 is suited for residential and light commercial installations where hard water conditions accelerate scale accumulation inside water heaters, heat exchangers, tankless units, and piping systems. It installs inline on the cold water supply line ahead of the equipment being protected. The 3/4-inch FPT threading is compatible with standard copper, CPVC, and threaded iron pipe systems. This type of anti-scale device is commonly specified when local water hardness levels create maintenance or efficiency concerns for heating and plumbing equipment.

Key Features

• 3/4-inch FPT connections on both inlet and outlet for standard pipe compatibility
• 6 GPM flow rate rating supports residential and light commercial supply lines
• 23.5-inch overall length accommodates inline installation on typical supply runs
• Reduces scale formation to protect water heaters, boilers, and heat exchangers
• Designed for point-of-entry or point-of-use cold water supply line installation

Compatibility

Designed as an OEM-style inline anti-scale treatment device for residential and light commercial potable water and hydronic heating supply lines using 3/4-inch FPT pipe connections.

Installation Notes

Installation should be performed by a licensed plumber in accordance with local plumbing codes and the International Plumbing Code (IPC). Shut off the main water supply and relieve system pressure before cutting into any supply line. Ensure flow direction through the unit matches the marked inlet and outlet. Do not install downstream of the water heater or in hot water lines unless the device is explicitly rated for elevated temperatures.

Technical Specifications

• Connection Size: 3/4 inch FPT
• Connection Type: Female Pipe Thread (FPT) both ends
• Flow Rate: 6 GPM
• Overall Length: 23.5 inches

Standard Information

• Brand: WATTS
• Manufacturer Part Number: 2188