pH pen for standard test tubes 16x50 mm or larger. Range: 0 - 14, Accuracy: +/- 0.2, Designed for simple one-hand operation. Automatically calibrates to pH 4, 7 and 10 buffers and can be adjusted to recognize any buffer. The case is IP65 waterproof. Probe: 120 mm × 12 mm
VWR* Macrotubes* Centrifuge tube, Maximum Centrifugal Force: 25, 000xg, with Caplock Clips*, Leak Proof, Syringe port in cap, Secure Seal From -86C To +80C, Low-Binding Virgin PP, Rnase & Dnase Free, Dimensions: 16.5 x 54mm, Colour: Assorted, Volume: 5 ml
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:
Epoxy-coated, steel wire test tube rack resists most solvents, weak acids and bases, Withstands temperatures up to 121 degreeC, Holds 20 Tubes, size 20mm.