Watch your vortex spin in the bottle! Create a tornado from two liter plastic bottles, water and a colorful plastic connecting tube. Swirling water creates a funnel-shaped vortex as it drains from one bottle to another.
eBay
10pcs/lot 4mm Aquarium Air Tube Connector Elbow Y shape Fish Tank Air Pump Connector Control Valve Air Pipe Tube Accessories
Aliexpress UK
Create a tornado from two liter plastic bottles, water and a colorful plastic connecting tube. Swirling water creates a funnel-shaped vortex as it drains from one bottle to another. You can create different ways to work with it by timing the water draining, using bits of paper or food coloring or lamp oil.
eBay
1/2/3/4/5pcs Quickly Connector Wash Water Tube Connectors 1/2" Garden Hose Fittings Pipe Connector Extender For Pipe
Aliexpress UK
Create a tornado from two liter plastic bottles, water and a colorful plastic connecting tube. Swirling water creates a funnel-shaped vortex as it drains from one bottle to another. You can create different ways to work with it by timing the water draining, using bits of paper or food coloring or lamp oil.
eBay
PE Water Pipe Connector Pipe Fittings 20/25/32/40/50mm Water Tube Direct Pipe Quick Valve Connector Pipe Connector 1 Pc
Aliexpress UK
Create a tornado from two liter plastic bottles, water and a colorful plastic connecting tube. Swirling water creates a funnel-shaped vortex as it drains from one bottle to another. You can create different ways to work with it by timing the water draining, using bits of paper or food coloring or lamp oil.
eBay
20pcs 4mm Aquarium Fish Tank Air Pump Connector L Shaped Connector Control Valve Air Pipe Tube Joints Connectors Accessories
Aliexpress UK
Create a tornado from two liter plastic bottles, water and a colorful plastic connecting tube. Swirling water creates a funnel-shaped vortex as it drains from one bottle to another. You can create different ways to work with it by timing the water draining, using bits of paper or food coloring or lamp oil.
eBay
U Shape Aquarium Air Tube Connector For Co2 Diffuser Oxygen Pump Systems Stainless Steel For 4-5mm Tube Fish Tank Accessories
Aliexpress UK
Watch your vortex spin in the bottle! Create a tornado from two liter plastic bottles, water and a colorful plastic connecting tube. Swirling water creates a funnel-shaped vortex as it drains from one bottle to another.
eBay
25mm 32mm Watering Tube Irrigation Filter 40/80/100/200 Mesh Filter Joint Garden Irrigation System Tube Connector Strainer
Aliexpress UK
Quantity:10x Tornado connectors. - Material: Plastic.
eBay
8PCS X 20mm/35mm/32mm PVC Water Pipe Tube Adapter Connectors Garden Hose Diameter 3/4/5/6 Ways for Gardening Jardineria Tube
Aliexpress UK
Quantity:10x Tornado connectors. - Weight:Each 20g.
eBay
2pcs/lot 4mm Acrylic Aquarium Connector Straight U Shape Tube Elbow Fish Tank Air Pump Air Tube Filter Connecting Accessories
Aliexpress UK