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Clear glass test tubes with rims, 20 mm wide, 150 mm long, pack of 72

Value Brand

Value Brand Test Tube Glass 20mm 150mm 35mL PK72

SKU CH-17RH-H9MEB

Clear glass test tubes hold 35 mL each, measure 20 mm by 150 mm, withstand 120 °C, and come in a 72-piece pack

  • Product typeAssortments & Kits
  • Clear glass enables visual monitoring of contents
  • 35 mL capacity suits standard laboratory procedures
  • 20 mm diameter fits common rack configurations
  • 150 mm length provides ample working height
  • Autoclavable to 120 °C for sterile reuse

35 mL Glass Test Tubes for Laboratory Use

These rimmed glass tubes hold 35 mL and measure 20 mm in diameter by 150 mm in length. The pack contains 72 non-sterile units made from clear autoclavable glass rated for 0 to 120 °C. They suit general lab work, sample storage and teaching demonstrations.

Simple Handling With Standard Labware

The straight rim fits common stoppers, clamps and racks so no special adapters are needed. Glass surfaces clean easily with standard solvents and withstand autoclave cycles. Breakage is the main risk if tubes are dropped or subjected to rapid thermal shock beyond the rated range.

Stable Performance During Extended Heating

Borosilicate-type glass maintains dimensional stability during prolonged exposure to the upper temperature limit. No deformation or leaching occurs during long autoclave runs or sustained water-bath heating. The material is not intended for direct flame contact or pressure-vessel use beyond the stated 120 °C ceiling.

How it compares

Measured against everything we stock in Meters, Testers & Measuring Tools, at today’s prices. Recalculated every night.

Price $32.99
Cheaper than about 64% of the 3,030 comparable items (median $54.99).

Specifications

Product
Brand nameLAB SAFETY SUPPLY
Product typeAssortments & Kits

Questions about this item

How can I verify the tubes are intact and fit standard 20 mm racks after unpacking?

Inspect each tube for cracks or chips, then place one in a 20 mm rack hole — it should sit level with the rim flush against the rack surface.

What does the pack of 72 contain and are closures or racks included?

The pack contains 72 clear glass tubes, 20 mm diameter by 150 mm length, 35 mL nominal capacity; no caps, stoppers or racks are supplied.

Should I choose this 35 mL size or a different capacity for general lab use?

Choose this 35 mL tube when you need a 20 mm x 150 mm format that withstands autoclaving up to 120 °C; select another capacity only if your protocol requires a different volume or diameter.

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