Marquest Scientific, Inc.
Marquest Scientific, Inc.
2950 Airway Avenue, Bldg C-5
Costa Mesa, California U.S.A.
Tel: (714) 491-9191
Toll Free: (866) 452-2349
Fax: (714) 491-9199
Email: sales@marquestscientific.com
Print Back

Series LG Lab Faucets with Water Quality Indicator Light (Union Ball Valve)

Materials: PVC, Natural Polypro, and High Purity PVDF

The Series LG Lab Faucets with Water Quality Indicator Light are laboratory water dispensing solutions designed for applications requiring water quality monitoring and control. Available in PVC, Natural Polypropylene, and High Purity PVDF, these faucets cater to various laboratory needs and chemical compatibilities.

Integrated Water Quality Indicator Light Features:

  • Water Quality Monitoring: Integrated resistivity light with color indicators:
    • Green light: Indicates water resistivity is above the set threshold
    • Red light: Indicates water resistivity is below the set threshold
  • Resistivity Thresholds: Available in 10k, 25k, 50k, 200k, 500k, and 1 meg ohm/cm options
  • Power Supply: Wall transformer converts 120 VAC to 9 VDC
  • Cord Length: 9 feet

Faucet Features:

  • Union Ball Valve: Provides adjustable orientation of handle and gooseneck, with 1/4 turn on/off operation
  • Max Flow Rate: 2.9 GPM @ 80 PSI, Full Open
  • Max Operating Pressure: 150 PSI
  • Outlet: Removable Serrated Barb Tip (Leaves 1/4" Female NPT Outlet when removed)
  • Inlet Connection: 3/8" Female NPT
  • Material Options: Available in PVC, Natural Polypro, or High Purity PVDF for different chemical compatibility needs
  • Durable Design: Components suited for laboratory environments
  • Regulatory Compliance: Meets FDA, USDA, and USP standards
  • Internal Flow Path: Designed to reduce turbulence

Applications:

  • Distilled Water
  • Deionized Water
  • Reverse Osmosis (RO) Water
  • Ultra Filtrated Water (UPW)
  • Type I, II, and III Water systems

Additional Information:

  • Heavy wall construction for durability
  • 3/8" O.D. tube x 3/8" MNPT compression tube fitting included
  • Custom options available upon request

For technical information, specifications, or to discuss custom requirements, please contact our sales department at 1-866-452-2349 or email sales@marquestscientific.com.

To view additional specifications and download sales drawings, please click on the specific Item # of interest.

LG-DB1MO-R.JPG
Unit of Measure
1 2 

Item #

Item Name

Materials

Configuration

Inlet Connection

Resistivity Threshold

List Price

LG-DB1MO-R1 N/A PVC Lab Faucet, Deck Mount, Ball Valve, 1 Meg Ohm-cm Resistivity Light Installed, 3/8" Fem NPT Inlet Connection, Rem Ser Barb Tip, Handle on Right N/A PVC, Viton Seals N/A Deck Mnt, Right Handle N/A 3/8" Female NPT in N/A 1 MEG Ohm·cm $399.50
LG-DB50K-R1 N/A PVC Lab Faucet, Deck Mount, Ball Valve, 50k Ohm-cm Resistivity Light Installed, 3/8" Fem NPT Inlet Connection, Rem Ser Barb Tip, Handle on Right N/A PVC, Viton Seals N/A Deck Mnt, Right Handle N/A 3/8" Female NPT N/A 50k Ohm·cm $399.50
LG-DB200K-R1 N/A PVC Lab Faucet, Deck Mount, Ball Valve, 200k Ohm-cm Resistivity Light Installed, 3/8" Fem NPT Inlet Connection, Rem Ser Barb Tip, Handle on Right N/A PVC, Viton Seals N/A Deck Mnt, Right Handle N/A 3/8" Female NPT N/A 200k Ohm·cm $399.50
LG-DB500K-R1 N/A PVC Lab Faucet, Deck Mount, Ball Valve, 500k Ohm·cm Resistivity Light Installed, 3/8" Fem NPT Inlet Connection, Rem Ser Barb Tip, Handle on Right N/A PVC, Viton Seals N/A Deck Mnt, Right Handle N/A 3/8" Female NPT N/A 500k Ohm·cm $399.50
LG-DB20K-R1 N/A PVC Lab Faucet, Deck Mount, Ball Valve, 20k Ohm-cm Resistivity Light Installed, 3/8" Fem NPT Inlet Connection, Rem Ser Barb Tip, Handle on Right N/A PVC, Viton Seals N/A Deck Mnt, Right Handle N/A 3/8" Female NPT N/A 20k Ohm·cm $399.50
LG-DB20K-R2 N/A Nat PP Lab Faucet, Deck Mount, Ball Valve, 20k Ohm·cm Resistivity Light Installed, 3/8" Fem NPT Inlet Connection, Rem Ser Barb Tip, Handle on Right N/A Nat PP, Viton Seals N/A Deck Mnt, Right Handle N/A 3/8" Fem NPT N/A 20k Ohm·cm $465.95
LG-DB50K-R2 N/A Nat PP Lab Faucet, Deck Mount, Ball Valve, 50k Ohm·cm Resistivity Light Installed, 3/8" Fem NPT Inlet Connection, Rem Ser Barb Tip, Handle on Right N/A Nat PP, Viton Seals N/A Deck Mnt, Right Handle N/A 3/8" Fem NPT N/A 50k Ohm·cm $465.95
LG-DB200K-R2 N/A Nat PP Lab Faucet, Deck Mount, Ball Valve, 200k Ohm-cm Resistivity Light Installed, 3/8" Fem NPT Inlet Connection, Rem Ser Barb Tip, Handle on Right N/A Nat PP, Viton Seals N/A Deck Mnt, Right Handle N/A 3/8" Fem NPT N/A 200k Ohm·cm $465.95
LG-DB500K-R2 N/A Nat PP Lab Faucet, Deck Mount, Ball Valve, 500k Ohm·cm Resistivity Light Installed, 3/8" Fem NPT Inlet Connection, Rem Ser Barb Tip, Handle on Right N/A Nat PP, Viton Seals N/A Deck Mnt, Right Handle N/A 3/8" Fem NPT N/A 500k Ohm·cm $465.95
LG-DB1MO-R2 N/A Nat PP Lab Faucet, Deck Mount, Ball Valve, 1 MO Ohm·cm Resistivity Light Installed, 3/8" Fem NPT Inlet Connection, Rem Ser Barb Tip, Handle on Right N/A Nat PP, Viton Seals N/A Deck Mnt, Right Handle N/A 3/8" Fem NPT N/A 1 MO Ohm·cm $465.95
LG-DB20K-R3 N/A PVDF Lab Faucet, Deck Mount, Ball Valve, 20k Ohm·cm Resistivity Light Installed, 3/8" Fem NPT Inlet Connection, Rem Ser Barb Tip, Handle on Right N/A PVDF, Viton Seals N/A Deck Mnt, Right Handle N/A 3/8" Fem NPT N/A 20k Ohm·cm $741.50
LG-DB50K-R3 N/A PVDF Lab Faucet, Deck Mount, Ball Valve, 50k Ohm·cm Resistivity Light Installed, 3/8" Fem NPT Inlet Connection, Rem Ser Barb Tip, Handle on Right N/A PVDF, Viton Seals N/A Deck Mnt, Right Handle N/A 3/8" Fem NPT N/A 50k Ohm·cm $741.50
LG-DB200K-R3 N/A PVDF Lab Faucet, Deck Mount, Ball Valve, 200k Ohm·cm Resistivity Light Installed, 3/8" Fem NPT Inlet Connection, Rem Ser Barb Tip, Handle on Right N/A PVDF, Viton Seals N/A Deck Mnt, Right Handle N/A 3/8" Fem NPT N/A 200k Ohm·cm $741.50
LG-DB500K-R3 N/A PVDF Lab Faucet, Deck Mount, Ball Valve, 500k Ohm·cm Resistivity Light Installed, 3/8" Fem NPT Inlet Connection, Rem Ser Barb Tip, Handle on Right N/A PVDF, Viton Seals N/A Deck Mnt, Right Handle N/A 3/8" Fem NPT N/A 500k Ohm·cm $741.50
LG-DB1MO-R3 N/A PVDF Lab Faucet, Deck Mount, Ball Valve, 1 MO Ohm·cm Resistivity Light Installed, 3/8" Fem NPT Inlet Connection, Rem Ser Barb Tip, Handle on Right N/A PVDF, Viton Seals N/A Deck Mnt, Right Handle N/A 3/8" Fem NPT N/A 1 MO Ohm·cm $741.50
LG-DB20K-L1 N/A PVC Lab Faucet, Deck Mount, Ball Valve, 20k Ohm·cm Resistivity Light Installed, 3/8" Fem NPT Inlet Connection, Rem Ser Barb Tip, Handle on Left N/A PVC, Viton Seals N/A Deck Mnt, Left Handle N/A 3/8" Fem NPT N/A 20k Ohm·cm $399.50
LG-DB50K-L1 N/A PVC Lab Faucet, Deck Mount, Ball Valve, 50k Ohm·cm Resistivity Light Installed, 3/8" Fem NPT Inlet Connection, Rem Ser Barb Tip, Handle on Left N/A PVC, Viton Seals N/A Deck Mnt, Left Handle N/A 3/8" Fem NPT N/A 50k Ohm·cm $399.50
LG-DB200K-L1 N/A PVC Lab Faucet, Deck Mount, Ball Valve, 200k Ohm·cm Resistivity Light Installed, 3/8" Fem NPT Inlet Connection, Rem Ser Barb Tip, Handle on Left N/A PVC, Viton Seals N/A Deck Mnt, Left Handle N/A 3/8" Fem NPT N/A 200k Ohm·cm $399.50
LG-DB500K-L1 N/A PVC Lab Faucet, Deck Mount, Ball Valve, 500k Ohm·cm Resistivity Light Installed, 3/8" Fem NPT Inlet Connection, Rem Ser Barb Tip, Handle on Left N/A PVC, Viton Seals N/A Deck Mnt, Left Handle N/A 3/8" Fem NPT N/A 500k Ohm·cm $399.50
LG-DB1MO-L1 N/A PVC Lab Faucet, Deck Mount, Ball Valve, 1 MO Ohm·cm Resistivity Light Installed, 3/8" Fem NPT Inlet Connection, Rem Ser Barb Tip, Handle on Left N/A PVC, Viton Seals N/A Deck Mnt, Left Handle N/A 3/8" Fem NPT N/A 1 MO Ohm·cm $399.50
LG-DB20K-L2 N/A Natural Polypro Lab Faucet, Deck Mount, Ball Valve, 20k Ohm·cm Resistivity Light Installed, 3/8" Fem NPT Inlet Connection, Rem Ser Barb Tip, Handle on Left N/A Nat PP, Viton Seals N/A Deck Mnt, Left Handle N/A 3/8" Fem NPT N/A 20k Ohm·cm $465.95
LG-DB50K-L2 N/A Natural Polypro Lab Faucet, Deck Mount, Ball Valve, 50k Ohm·cm Resistivity Light Installed, 3/8" Fem NPT Inlet Connection, Rem Ser Barb Tip, Handle on Left N/A Nat PP, Viton Seals N/A Deck Mnt, Left Handle N/A 3/8" Fem NPT N/A 50k Ohm·cm $465.95
LG-DB200K-L2 N/A Natural Polypro Lab Faucet, Deck Mount, Ball Valve, 200k Ohm·cm Resistivity Light Installed, 3/8" Fem NPT Inlet Connection, Rem Ser Barb Tip, Handle on Left N/A Nat PP, Viton Seals N/A Deck Mnt, Left Handle N/A 3/8" Fem NPT N/A 200k Ohm·cm $465.95
LG-DB500K-L2 N/A Natural Polypro Lab Faucet, Deck Mount, Ball Valve, 500k Ohm·cm Resistivity Light Installed, 3/8" Fem NPT Inlet Connection, Rem Ser Barb Tip, Handle on Left N/A Nat PP, Viton Seals N/A Deck Mnt, Left Handle N/A 3/8" Fem NPT N/A 500k Ohm·cm $465.95
LG-DB1MO-L2 N/A Natural Polypro Lab Faucet, Deck Mount, Ball Valve, 1 MO Ohm·cm Resistivity Light Installed, 3/8" Fem NPT Inlet Connection, Rem Ser Barb Tip, Handle on Left N/A Nat PP, Viton Seals N/A Deck Mnt, Left Handle N/A 3/8" Fem NPT N/A 1 MO Ohm·cm $465.95
Unit of Measure
1 2