Marina Aquarium Brush Cleaning Kit contains three cleaning brushes, foxtail brush is ideal for cleaning tubes up to 2,54 cm diameter and 45 cm length, airline brush is designed for cleaning airline tubing, filter st
Y-Shaped Flint Glass Connecting Tube, Arm Length: 1 1/2in, with a 120 deg angle provides safer connections as the ends have constrictions to hold rubber tubing securely, Made from quality flint glass, Size: 1/4in ID X 5/16in OD (7.9mm)
Marina airline tubing is safe and dependable for use with air stones, air-actuated ornaments and air-driven filters. Designed to fit all standard outlets, the tubing will remain supple and retain its shape. Size: 6
Energy Tube, teaching resource for an array of scientific concepts: open and closed circuits, conductors vs. Insulators, light waves, sound waves,currents, and energy, When a conductor touches both of the electrodes on tube, tube emits a sound and flashing red/green/blue LED lights
Fermentation Tube, Ungraduated, with Foot, Verify gas production in fermentation exercises, gas produced by yeast or other organisms rises into a 5 or 10 mL evolution tube, Diameter: 115mm, Size: 5 mL
Test Tube, Material: Made from high quality, heavy duty, Borosilicate Glass, Light wall with Rim, Dimension: 150x18mm, Autoclavable, with superior chemical durability. Low temperature gradient- can withstand high temperatures, capacity: 25 ml, PK24
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