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September 08, 2026 2 min read
Product brochure covering the WaterCop Classic leak detection and automatic water shut-off system, including valve sizing and accessory ordering information.
Product brochure for WaterCop® Classic — an automated main-water-shutoff valve and wireless leak sensor system for single-family or vacation homes, designed to detect plumbing leaks and shut off the main supply automatically.
WaterCop® Classic monitors a property 24/7/365 for plumbing leaks using a network of wireless leak sensors. When a leak is detected, the WaterCop® system quickly closes the main supply valve. The valve remains closed until manually reset. WaterCop® Classic can also trigger third-party devices — lights, buzzers, auto-dialers, or security/automation systems — to further alert and notify property owners or managers. The valve may also be controlled independently via open/close soft-touch buttons on the front of the valve actuator.
*Lead Free NSF/ANSI 372 refers to the wetted surface of pipe, fitting, and fixtures in potable water systems with weighted average lead content ≤ 0.25%. Source: California Health & Safety Code (116875); Vermont Act 193.
Provides easy, immediate control of the main water line — operate the water valve open or closed at the touch of a button.
Step One: Select the appropriate shut-off valve by size.
| Size (FNPT) | Part No. (Lead Free NSF/ANSI 372) |
|---|---|
| ½" | WCVLF ½ |
| ¾" | WCVLF ¾ |
| 1" | WCVLF 1 |
| 1¼" | WCVLF 1¼ |
Step Two: Add the WCDACT WaterCop actuator.
Step Three: Add WaterCop accessories:
| Item | Description |
|---|---|
| WCDFS1 | Single Probe Wireless Leak Sensor |
| WCDFS2 | Dual Probe Wireless Leak Sensor |
| WCDFST | Low Temperature Wireless Sensor |
| WCDR | Range Enhancing Repeater |
| WPA | Sensor AC Power Supply (Leak & Temperature Sensors) |
| RS100 | Wired Water Control Wall Switch |
| CBL50 | Valve/Switch Interconnect Cable (50 ft.) |
| CBL100 | Valve/Switch Interconnect Cable (100 ft.) |
| Model | Valve Size | Flow (GPM) |
|---|---|---|
| WCDACT | – | – |
| WCD ½ | ½ (½-14 NPT) | 19 |
| WCD ¾ | ¾ (¾-14 NPT) | 34 |
| WCD 1 | 1 (1-1½ NPT) | 52 |
| WCD 1¼ | 1¼ (1¼-1½ NPT) | 77 |
To order or for additional information, visit watercop.com or call 800-545-3636.
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