Marina 75 Air Pump combines high performance output with quiet operation, air pump is a reliable air source for a wide variety of applications for delivery of oxygen to air-operated aquarium, Single Outlet Output: 60
Marina Cool Air Pump is a reliable source for a wide variety of applications requiring the delivery of oxygen to aquariums, including delivering air to air-operated items such as air stones, air curtains, and air-
Marina 300 Air Pump combines high performance output with quiet operation, air pump is reliable air source for a wide variety of applications for delivery of oxygen to air-operated aquarium, Operate items such as air
Environmental Meter, 10-in-1, Measures Air Velocity, Air Flow, Air Temperature, Type K Temperature, Heat Index, Humidity, Wet Bulb, Dew Point, Windchill, & Light Level, Auto power off with disable, Tripod mount, Complete, wrist strap, Dimensions: 6x2.3x1in
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
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:
Marina Cool airline tubing accessory for any air device. It is ideal for use with air stones, air-actuated ornaments and air-driven filters. Designed to fit all standard outlets, the airline tubing will remain supp
Marina Ultra 4-way air control valve allows you to run up to 4 air-driven products. Each valve has flow adjuster which enables you to regulate air output to each devise. The valve is leak-proof and suitable for fresh
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:
Marina T Connector allows to split air coming from the air pump into two even and constant air streams to separate air-driven devises in aquarium. The plastic and non-corrosive connector is safe for use in salt water aq
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: 3 m
Marina Check Valve prevents water from siphoning out of the aquarium through the air hose and into the air pump in the event of a power failure or when removing filters and other air-driven accessories from the aqu
Atmospheric Mat with Hook, Measures 10.5 x 10.5 In, durable, thick rubber mat has a simple design that demonstrates a powerful concept - Atmospheric Pressure
Harbottle, teaching tool for introducing pressure and discussing its applications, such as vacuum cleaners, flight, pumps, weather, and even how we breathe, balloon and a bottle, Measures 5In in diameter. Grades 5 and up
Kit Electromagnet Crane Activity Single, Utilize the design and engineering process, Encourage creativity, critical thinking and problem solving, Learn about electromagnetism, magnetic fields, and simple machines, Apply the scientific method, Innovate
Kit Electromagnet Crane Activity, Utilize the design and engineering process, Encourage creativity, critical thinking and problem solving, Learn about electromagnetism, magnetic fields, and simple machines, Apply the scientific method, Innovate (design, build)
Kit is climate change making us sick, Conduct simulated antibody tests for allergens, Graph and analyze data to determine if there is a correlation between temperature, pollen counts, and allergy symptoms, Single, Time: 1-2 forty-minute class periods
Kit is climate change making us sick, Conduct simulated antibody tests for allergens, Graph and analyze data to determine if there is a correlation between temperature, pollen counts, and allergy symptoms, Refill pack contains all materials to refill 10 kits
Kit is climate change making us sick, Conduct simulated antibody tests for allergens, Graph and analyze data to determine if there is a correlation between temperature, pollen counts symptoms, unassembled 10-pack contains all materials to assemble 10 kits
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