Superfish non-return valve (3 way)

The Superfish 3‑Way Plastic Non‑Return Splitter is a secure, high‑precision air‑control valve designed to split a single airline into two independent outputs while preventing water backflow and airline slippage. Built from durable, moisture‑resistant plastic, this valve is ideal for air‑driven aquarium systems that require reliable multi‑line distribution.

This model features a screw‑top tightening system on all three ports. You insert the airline tubing into the connector, then tighten the screw‑top collar, which clamps the tubing firmly in place. This mechanical lock prevents the airline from slipping out — even with soft silicone tubing, high‑pressure pumps, or tanks where vibration causes standard push‑fit valves to loosen.

The internal non‑return (check) diaphragms ensure water cannot flow back into your air pump during power outages or pressure drops. With one inlet and two protected outlets, you can safely split airflow to multiple devices such as sponge filters, air stones, breeding boxes, or ornaments.

Technical Features

• Material: High‑strength plastic

• Function: 1 airline input → split into 2 outputs

• Valve Type: Three independent non‑return (check) channels

• Connection Method: Insert airline → tighten screw‑top → secure lock

• Compatibility: Standard 4mm (3/16") aquarium airline tubing

• Protection: Prevents water backflow into air pumps

• Applications: Air stones, sponge filters, nano tanks, breeding setups, ornaments

• Durability: Corrosion‑proof, vibration‑stable, long‑life construction

Technical Benefits

• Screw‑top collars prevent airline tubing from popping off

• Provides a strong mechanical grip ideal for soft silicone tubing

• Safely splits one airline into two independent outputs

• Protects air pumps from water damage

• Ensures stable airflow with minimal resistance

• Lightweight, reliable, and easy to install