Griffco PVC Calibration Cylinders and Borosilicate Glass Columns are designed to enhance the performance of a chemical feed system by providing a verification of the flow rate of the chemical feed pump. Griffco offers a wide range of calibration column sizes and material options that work in many different applications.
Available Sizes
30mL to 40,000mL
Options for PVC Tops:
![]() Sealed with Vent | ![]() EZ-Clean | ![]() Dust Cap |
PVC Cylinders
Features
- Sizes from 100mL to 40,000mL
- Clear, easy-view tube
- High-contrast graduation markings
- Direct GPH and mL readout
- Sealed top with overflow connection
- Optional EZ-Clean model
- Optional open top with dust cap
Configurations
- Dust cover
- Sealed
- EZ-Clean
Griffco Benefits
- High reliability with numerous options that ensure precise performance
- Clear, easy-view tube
- Robust construction


Wetted Materials
End Caps
Polypropylene
PVC
CPVC
PVDF
PTFE
Halar®
316 SS
Alloy 20
Hastelloy® C
Connections
Threaded – Standard
Socket
Socket Flanged
Flanged (with ball valve)
Union
Options
Custom Labels
Material Certifications
Calibration Column Stand
TITLE | DESCRIPTION | DATE MODIFIED | DOWNLOAD |
Glass Cylinders
Features
- Sizes from 30mL to 20,000mL
- Borosilicate glass tube
- High-contrast graduation markings
- US, Metric & GPH Scales
- Seven (7) end cap materials
- Easy disassembly for cleaning
- Protective outer shield (except 10K and 20K models)
- Sealed top with overflow connection
Configurations
- Dust cover
- Sealed
- EZ-Clean
Griffco Benefits
- High reliability with numerous options that ensure precise performance
- Clear, easy-view tube
- Robust construction

Wetted Materials
End Caps
Polypropylene
PVC
CPVC
PVDF
PTFE
Halar®
316 SS
Alloy 20
Hastelloy® C
Connections
Threaded – Standard
Socket
Socket Flanged
Flanged (with ball valve)
Union
Options
Custom Labels
Material Certifications
Calibration Column Stand
TITLE | DESCRIPTION | DATE MODIFIED | DOWNLOAD |
Image | Product | Description | Add to Project |
---|---|---|---|
CPVC – Sealed | |||
CPVC – Sealed – 1/2″ Connection ports | |||
CPVC – Sealed – Flanged | |||
EZ Clean | |||
EZ – 1″ NPT – Overall Height 11″ – Uses 3″ Clear PVC & 2000 mL End Caps | |||
EZ Clean – BSP Threads | |||
EZ Clean – BSPT – EPDM | |||
EZ Clean – EPDM | |||
EZ Clean – Flanged | |||
EZ Clean – 1/2″ Flanged Connections |