Kohler Anthem Digital Thermostatic Valve - 2-Port, 4-Port, and 6-Port Models

Experience precise and luxurious shower control with the Kohler Anthem Digital Thermostatic Valve, a cornerstone of the Anthem showering system. Engineered with advanced digital thermostatic technology, this valve delivers accurate temperature and flow control for a consistent, personalized shower experience. Available in 2-port, 4-port, and 6-port configurations, it caters to diverse shower setups, from single-outlet applications to multi-zone systems with up to six outlets. Designed for seamless integration with the Anthem digital control, its plug-and-play installation simplifies setup. Featuring antiscald protection, an optional eco mode for water conservation, and a reinforced engineering-grade thermoplastic body, this valve combines safety, efficiency, and durability. Ideal for modern bathrooms, it offers unmatched performance and versatility.

Product Description

The Kohler Anthem Digital Thermostatic Valve redefines shower precision with its state-of-the-art digital technology. The 2-port model (K-28209) is perfect for smaller setups, managing one or two shower outlets with a flow rate of up to 12 gpm (45.4 lpm) at 45 psi. The 4-port model (K-28211) supports up to four outlets, offering two distinct temperature and flow zones with a robust 22 gpm (83 lpm) capacity. The 6-port model (K-28212) accommodates complex systems with six outlets, also providing two zones and a 22 gpm flow rate. All models feature antiscald protection for safety and a built-in eco mode that limits output to one outlet at a time to conserve water. Crafted with a reinforced engineering-grade thermoplastic body, the valve ensures durability and corrosion resistance. Designed for 120VAC hardwired installation, it includes filter screens, a jumper, mounting hardware, and a power supply unit for easy setup. UL and CSA certified, this valve is backed by a 5-year limited warranty, making it a reliable choice for any shower configuration.

Available Configurations

• 2-Port Valve (K-28209):

  • Outlets: Two independently controllable ½" outlets with brass tube connections

  • Flow Rate: Up to 12 gpm (45.4 lpm) at 45 psi; max 9.5 gpm (36 lpm) per outlet

  • Ideal for: Single or dual-outlet showers (e.g., one showerhead or showerhead plus handheld)

• 4-Port Valve (K-28211):

  • Outlets: Four independently controllable outlets

  • Flow Rate: Up to 22 gpm (83 lpm) at 45 psi; max 9.5 gpm (36 lpm) per outlet

  • Ideal for: Multi-outlet showers with two temperature/flow zones (e.g., multiple showerheads, body sprays)

• 6-Port Valve (K-28212):

  • Outlets: Six independently controllable outlets

  • Flow Rate: Up to 22 gpm (83 lpm) at 45 psi; max 9.5 gpm (36 lpm) per outlet

  • Ideal for: Complex shower systems with two temperature/flow zones (e.g., showerheads, body sprays, handhelds)

Key Features

• Digital Thermostatic Technology: Ensures precise, consistent temperature and flow control for a tailored shower experience.

• Antiscald Protection: Enhances safety by preventing sudden temperature spikes.

• Eco Mode: Optional feature limits use to one outlet at a time, conserving water without compromising comfort.

• High Flow Rates: 2-port supports 12 gpm; 4-port and 6-port support 22 gpm, with max 9.5 gpm per outlet.

• Multi-Zone Control: 4-port and 6-port models allow two independent temperature and flow zones for versatile shower configurations.

• Durable Construction: Reinforced engineering-grade thermoplastic body resists corrosion and ensures longevity.

• Plug-and-Play Installation: Includes filter screens, jumper, mounting hardware, and power supply unit for easy setup.

• Seamless Integration: Designed for use with the Anthem digital control (K-28214, sold separately).

• Certified Safety: UL and CSA certified, meeting rigorous electrical standards (UL 1951).

• Compact Design: Wall-mount, built-in installation with a sleek black finish blends into any bathroom.

• 5-Year Limited Warranty: Guarantees reliability and performance for years of use.

Product Specifications

• Dimensions:

  • 2-Port: 10-5/8"W x 9-1/16"D x 3"H (26.99cm x 23.01cm x 7.62cm)

  • 4-Port: 20-3/8"W x 8-1/4"D x 3"H (51.75cm x 20.96cm x 7.62cm)

  • 6-Port: 21-1/8"W x 9-1/16"D x 3"H (53.66cm x 23.01cm x 7.62cm)

• Weight: 5 lbs (2.27kg) for all models

• Material: Engineering-grade thermoplastic casing

• Finish: Black

• Power: 120VAC, hardwired

• Flow Rate:

  • 2-Port: Up to 12 gpm (45.4 lpm) at 45 psi; max 9.5 gpm (36 lpm) per outlet

  • 4-Port and 6-Port: Up to 22 gpm (83 lpm) at 45 psi; max 9.5 gpm (36 lpm) per outlet

• Certifications: UL, CSA (UL 1951)

• UPC Codes:

  • 2-Port (K-28209): 885612907264

  • 4-Port (K-28211): 885612907288

  • 6-Port (K-28212): 885612907295

• Warranty: 5-Year Limited Warranty

• Installation Type: Wall-mount, built-in

• Country of Origin: Not specified (Kohler is a US-based brand)

Included Components

• Anthem Digital Thermostatic Valve (2-port, 4-port, or 6-port)

• Filter Screens (2)

• Jumper

• Mounting Hardware

• Power Supply Unit

• Installation and Operation Manual

Optional Accessories (Sold Separately)

• Anthem Digital Control (K-28214)

Usage Tip

Install the Anthem Digital Thermostatic Valve in a concealed wall location, ensuring access to a 120VAC electrical supply for hardwiring. Pair with the Anthem digital control (K-28214) for intuitive operation of temperature and flow settings. Activate eco mode to conserve water during single-outlet use, ideal for daily showers. For multi-zone setups (4-port or 6-port), configure two distinct temperature and flow zones to customize your shower experience. Clean the filter screens periodically to maintain optimal flow and performance. Ensure proper ventilation in the installation area to prevent overheating.

Why Choose Kohler?

The Kohler Anthem Digital Thermostatic Valve delivers precision, safety, and versatility for modern shower systems. Its digital technology ensures consistent temperature and flow, while antiscald protection and eco mode enhance safety and efficiency. Available in 2-port, 4-port, and 6-port configurations, it supports a range of shower setups, from simple to sophisticated. The plug-and-play design simplifies installation, and the durable thermoplastic body ensures long-lasting performance. Backed by Kohler’s 5-year limited warranty and UL/CSA certifications, this valve is a premium choice for a luxurious, reliable shower experience.

Installation Notes

• Requires professional installation with hardwiring to a 120VAC electrical supply; comply with local electrical and plumbing codes.

• Ensure sufficient wall cavity space for the valve’s dimensions (check model-specific measurements).

• Connect to the Anthem digital control (K-28214) for full functionality.

• Use the included filter screens to protect the valve from debris and ensure consistent flow.

• Verify water pressure (45 psi recommended) to achieve maximum flow rates.

• Install in a location with adequate ventilation to maintain optimal performance.

Select the 2-port, 4-port, or 6-port Kohler Anthem Digital Thermostatic Valve to create a precise, safe, and luxurious shower experience tailored to your bathroom’s needs.