【Direct Drop-in Replacement for Taco ZVC404 & 404】This 4-zone control panel is engineered as a perfect, plug-and-play substitute for the Taco ZVC404, ZVC404-4, and legacy 404 models. It installs in minutes using your existing wiring and mounting screws, eliminating the need for expensive OEM parts and saving you on service call costs. 【Switchable Priority Zone for Ultimate Flexibility】Features a user-selectable priority zone switch. This allows you to designate Zone 1 as priority (for domestic hot water) or disable priority for equal operation of all four zones, providing customization that generic boards may not offer. 【Visual Diagnostics & Streamlined Wiring】Bright LED indicator lights for each zone provide instant visual confirmation of power, call for heat, and valve operation, making troubleshooting fast and easy. The clearly labeled terminal strip simplifies installation and reduces wiring errors. 【Robust Construction for Reliable Performance】Built with high-quality components on a durable PCB. Designed with heat-resistant materials and fully enclosed relays to ensure stable operation, prevent overheating, and deliver long-lasting performance in the demanding environment of your mechanical room. 【Rigorously Tested & Supported by Experts】Every unit is fully load-tested before shipping to guarantee it arrives ready to perform. If you have any installation questions or concerns, we provide expert assistance to ensure your system is up and running quickly.  ZVC404-4 Zone Valve Control Replacement - Professional Grade 4-Zone Compatible with Taco ZVC404

🔧 DIRECT FIT REPLACEMENT | ⚡ EASY INSTALLATION | 🔥 RIGOROUSLY TESTED

🚀 WHY CHOOSE OUR ZONE VALVE CONTROL?

PERFECT FIT FOR TACO SYSTEMS
Direct Replacement for Taco ZVC404, ZVC404-4, and legacy 404 models
Plug-and-Play Installation - Uses existing wiring and mounting hardware
Save Hundreds on OEM parts and professional service calls

SMART PRIORITY ZONE CONTROL
User-Selectable Priority - Choose Zone 1 priority for domestic hot water or disable for equal operation
Advanced Flexibility - Customize your system's operation beyond generic replacements
Optimized Performance - Ensure efficient heating where you need it most

INSTANT VISUAL DIAGNOSTICS
Bright LED Indicators - Monitor power, heat calls, and valve operation at a glance
Easy Troubleshooting - Identify issues quickly without guesswork
Clear Terminal Labeling - Prevent wiring errors during installation

INDUSTRIAL-GRADE RELIABILITY
Military-Grade Components - Built on durable, heat-resistant PCB
Fully Enclosed Relays - Protect against dust, moisture, and overheating
Rigorously Tested - Each unit load-tested to ensure perfect operation

✅ COMPATIBLE WITH:
Taco ZVC404 & ZVC404-4 Systems
Legacy Taco 404 Models
4-Zone Hydronic Heating Systems
Most Boiler Systems with Zone Valves
Residential and Light Commercial Applications

🛠️ EXPERT SUPPORT GUARANTEED
Pre-Tested Performance - Every unit verified before shipping
US-Based Experts - Get help when you need it from heating specialists
Easy Installation - Most homeowners complete in under 30 minutes

⭐ SATISFACTION GUARANTEED | 🚀 FREE EXPERT SUPPORT | 🔧 100% DROP-IN FIT

🛒 ADD TO CART NOW | Risk-Free 30-Day Returns

Note: Verify compatibility with your existing system before purchase. Designed for 24V systems. Professional installation recommended if unfamiliar with HVAC wiring.