Clack 1191 head In/Out Head Only with 3/4in BSPM Tails - Comes with Top Screen

The Clack 1191 head is a straightforward manual in/out valve, ideal for downflow filtration or upflow pH correction systems. Its simplicity makes it highly reliable, easy to maintain, and cost-effective.

🔧 Key Features & Specifications

Vessel

• Size: - Fits all 2.5in Vessels

Clack 1191 In/Out Head

• Port Size: 1" BSP Male (adaptable to ¾")
• Tank Connection: Standard 2.5" threaded neck
• Riser Pipe Compatibility: 1.05" O.D. riser tube
• Operation: Manual in/out flow control
• Function: Designed for non-regenerating filtration systems

💧 Typical Applications

This empty vessel can be filled with a variety of filter media to suit your water treatment needs:

• Granular Activated Carbon (GAC)
  Removes chlorine, chloramine, taste, odour, VOCs, and organic contaminants
• pH Neutralisation Media
  Ideal for acidic water correction in upflow configurations
• Deionisation (DI) or Softener Resin
  Suitable for specialist commercial or industrial use

🛠 Maintenance Notes

As this system uses a manual in/out head, routine maintenance such as periodic manual backwashing is required to:

• Prevent media compaction
• Avoid channelling
• Maintain optimal filtration performance

Unlike automatic Clack WS1 or metered control valves, the 1191 head offers a simple, low-maintenance solution where automation is not necessary.

✔ Why Choose This Vessel?

• Proven Clack reliability
• Flexible media options
• Ideal for carbon filtration and pH correction
• Cost-effective alternative to automatic control valves
• Suitable for potable water systems