CO2 Regulator PRO Extension – Dual Manifold Block Add-On

Upgrade your CO2 Regulator with this manifold block extension, allowing you to run a second bubble counter and needle valve from a single regulator. Perfect for aquarists with multiple planted tanks, this extension enables precise CO2 distribution to two aquariums from one pressurised CO2 system. Built to high-quality standards with W21.8 threading, it's fully compatible with both domestic and European CO2 cylinders.

⚠️ Warning: Cheap CO2 regulator extenders sold on large online marketplaces may not meet safety standards. Poorly manufactured units can pose serious risks.

Key Features and Important Notes:

• What’s Included:
  – 1 × CO2 Regulator PRO Manifold Extension Block
  ⚠️ CO2 Regulator PRO, bubble counter, and needle valve not included.
• Dual Output Function:
  Split your CO2 line to serve two aquariums from one pressurised CO2 source.
• Fine Adjustment Needle Valve:
  Designed for precise micro-adjustments. Not intended for full shut-off.
• Important Note on Use:
  Always use the main valve for complete shut-off. Do not force the needle valve closed, as this may cause damage and void the warranty.
• Thread Compatibility:
  W21.8 × 1/14" – fits standard UK and EU CO2 cylinders.
• Material:
  Durable metal construction for long-lasting, corrosion-resistant performance.
• Warranty:
  1‑Year Warranty (T&Cs apply).