3900 Flow Timer & Meter Control Head

SKU SWP-CV-39XTF

$3,849.95 SKU SWP-CV-39XTF

Enhance your water treatment system with the Vtrol V39 Control Valve, developed by Quest Technologies, Inc.

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Type, Timer
Interface, Standard / Analog
Valve, Filter

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Shipping

Free shipping on orders over $150

Residential addresses in the lower 48 US states. Excludes business addresses, commercial and industrial systems (which ship by freight), and filter media sold by the bag or cubic foot.

This item ships free

Order by 3:00 PM Eastern on a business day and most filters, cartridges and smaller items leave our facility that same day. Standard residential systems ship within 1 to 2 business days, and whole house, custom and specialty systems typically within 3. So far in 2026, 95% of our orders have shipped within one business day and 99% within five (based on an internal review of our order records).

Once shipped, standard delivery typically arrives in 3 days to the Southeast, Northeast and Southwest, and in 4 days to the Midwest and the West. Need it sooner? UPS 2nd Day Air and Next Day Air are available at checkout for eligible products. Systems that ship by freight can take longer and may need a delivery appointment.

30-day returns

Returns are accepted within 30 days of delivery when:

  • The item is new and unused, in its original packaging, with no damaged or missing parts.
  • You ask us for a Return Merchandise Authorization (RMA) number before you send it back.
  • You pay for return shipping. Shipping, handling and restocking fees apply.

Filter cartridges, membranes, reverse osmosis systems, custom or special orders and commercial products cannot be returned.

Lifetime support

Our team answers questions about products, orders, installation, troubleshooting and replacement parts.

Phone: 770-951-5600 or (800) 934-0051

Email: help@crystalquest.com. We reply within 24 to 36 hours.

Live chat during business hours

Hours: Monday to Friday, 9:00 AM to 5:00 PM Eastern. We observe U.S. federal holidays.

3900 Flow Timer & Meter Control Head

Description

Vtrol V39 Control Valve (3900)

Enhance your water treatment system with the Vtrol V39 Control Valve, developed by Quest Technologies, Inc. This robust and versatile control valve is designed to provide superior performance for both filtration and softening applications. With its advanced timer and metering options, the Vtrol V39 ensures precise control and efficient water management.

Key Features:

  • High-Quality Valve Material: Constructed from durable brass and EP/EPDM rubber components to ensure long-lasting performance.
  • Versatile Inlet/Outlet Options: Compatible with 3" BSP female connections and 6" tank adapters.
  • Adjustable Regeneration: Supports both downflow (DF) and upflow (UF) regeneration with adjustable cycles for optimal performance.
  • Advanced Timer Options: Choose from NXT and NXT2 controllers with various timer settings to suit your specific needs.
  • Accurate Metering: Offers a range of meter capacities with high accuracy, suitable for different flow rates and volumes.
  • User-Friendly Interface: Features an LCD backlit display for easy programming and diagnostics.
  • Certified Quality: Complies with multiple international standards, including CE, DM174, and ACS certifications.
  • Manual Override: Equipped with manual lever operations for easy maintenance and control.

Typical Applications:

  • Industrial and commercial water softeners
  • Large-scale filtration systems