Seachem U Tube 20mm Continuum Purigen is the highest capacity

Purigen is the highest capacity organic filtration resin on the market

Discus are admired for their vivid colors

Our nearest competitor’s product is only 110

slow-moving waters of Southeast Asia

By utilizing virgin plastic in the moulding process instead of re-grind or recycled plastics

Seachem U Tube 20mm Continuum Purigen is the highest capacityThe 20 mm glass U Tube allows you to easily run airline (preferably silicone) for CO2 or for general air supply over the rim of the aquarium without bending or creasing. Made of strong clear glass, which minimizes visibility of tubing. Glass U Tube joint for silicone tubing 20 mm size suitable for rimless aquariums and most standard aquarium rims Great for use with CO2 injection systems or bubblers Compatible with 6 mm (1 4") Standard Airline Tubing.