Transparent Turbidity Tube, simple apparatus is used to determine the transparency of water in lakes, streams, oceans as well as other bodies of water, Contains: 60cm transparent turbidity tube, rubber stopper with Secchi disc, 20cm silicon tube, Hoffman's clip, steel
cardboard cryogenic tube Partition, Tubes: 15 mL, Color: White, 36 wells, well diameter: 17.5 mm, also with Write-on surface for descriptions or self numbering systems, quick/inexpensive solution with the added co
cardboard cryogenic tube Partition, Tubes: 50 mL, Color: White, 16 wells, well diameter: 29.5 mm, also with Write-on surface for descriptions or self numbering systems, quick/inexpensive solution with the added co
Tube Rack Dispenser, 3-Tier, Dimensions: 12X5.5X16in, Nine compartments to organize and store tubes, Holds all sizes of tubes, up to 210 tubes, See-Thru for quick sorting by tube type, or cap, Constructed from durable 3/16 acrylic
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