Description
Tornado Outlet Nozzle 25mm Slip
The Tornado Outlet Nozzle (25mm slip) is a popular aquarium plumbing fitting used as a return/outflow nozzle on the end of water circulation pumps, canister filters, or sump return lines. It’s designed to create a wide, powerful, swirling or “tornado-like” water flow pattern that enhances circulation in fish tanks, planted aquariums, or ponds. The “Tornado” name comes from its flared, bell-shaped outlet that disperses water in a broad, vortex-style spray (often wider and more turbulent than standard straight or flat nozzles), promoting better oxygenation, nutrient distribution, and debris movement without creating dead spots.
The 25mm size refers to the slip (push-fit) connection for 25mm OD (outer diameter) PVC pipe. Simply push the nozzle over the end of a 25mm pipe for a secure, leak-resistant fit (no glue needed for most setups).
Benefits:
- Superior Circulation — The tornado/vortex effect mixes water more efficiently than straight pipes, reducing dead zones, improving oxygen levels, and helping CO2/nutrient distribution in planted tanks.
- Customizable Direction — Easy to aim flow toward plants, away from substrate to avoid disturbing sand, or create gentle waves for fish like bettas/goldfish.
- Reduces Surface Film — Strong surface agitation breaks up oils/proteins for clearer water.
- Low Maintenance — No moving parts (beyond joints); easy to clean/remove.
- Fish/Plant Friendly — Wide flow prevents strong direct jets that could stress fish or uproot plants; great for community tanks or emersed setups.
- Versatile — Works with canister filters, HOBs, sumps, or inline pumps; some users pair with spray bars for even more spread.
Specifications:
Connection Size — 25mm slip/push-fit (inner diameter 25mm and outer connector 31mm.
Overall Length — 16 cm depending on joints.
Outlet Opening — Flared 4 cm diameter (creates wide spray).
Material — ABS plastic or similar (black, UV-resistant, non-leaching).
Flow Compatibility — Suited for pumps 500–2000+ L/h (adjust based on tank size; higher flow = stronger tornado effect).
