Smooth‑tail reducer 3/8" to 1/4" tube – John Guest

The smooth‑tail reducer (Plug‑in Reducer) from John Guest is an essential accessory for adapting your beverage or water distribution circuits. Unlike a standard reducing union, its “male” part (the smooth tail) plugs directly into an existing fitting, instantly transforming a standard outlet into a smaller‑diameter one.

This component is particularly appreciated in series setups where space is limited, such as draft towers or control boxes. Its structure ensures exceptional durability against pressure cycles and complete neutrality toward the liquids being transported.

Advantages of the John Guest smooth‑tail reducer

• Simplified assembly: Reduce the number of components and potential leak points.
• Secure connection: The smooth tail is firmly held by the gripping teeth of the receiving fitting for total sealing.
• Removable: Like all Speedfit products, it can be removed and reused instantly without damaging the equipment.

Technical specifications

• Brand: John Guest.
• Type: Smooth‑tail reducer (Plug‑in Reducer).
• Connections: 1 smooth tail (male – 3/8") and 1 Speedfit push‑fit fitting (female 1/4").
• Compatibility: Inserts into Speedfit fittings and accepts PE, Nylon, or Polyurethane tubing.
• Applications: Beer, wine, drinking water, compressed air, and inert gases (CO2/Nitrogen).