Best Sergi Lab Supplies in 2026

A separator for purifying DNA, RNA and other biomolecules with magnetic beads, works with any kit

Compatible with the standard 15 mL centrifuge tubes. Fits 8 of the 15 mL tubes, 4 on each side.

Strong neodymium magnets of N52 grades efficiently pull beads to the side of a tube

A magnet is built in just above the bottom of the tube, preventing accidental beads uptake.

Super-Value Pack: Package contains 60pcs 16 x 100mm clear plastic tubes with caps and a 60-hole test tube rack. Capacity of each test tube is 13ml.

Product material: The test tube is made of transparent polystyrene (PS) plastic, non-toxic, safe, high quality, durable and not easy to break.

With test tube cap: The cap can be closely attached to the 16mm diameter test tube, enabling good sealing performance and can effectively prevent liquid leakage.

PREMIUM QUALITY || Premium quality test tube stand featuring a sturdy beech wood construction that will stand up to the wear and tear of the lab

ACCOMMODATES 12 TUBES || Supports up to 12 test tubes that measure up to 2cm in diameter - each hole measures 28mm

GREAT FOR CLASSROOM, SCIENCE LABORATORIES AND HOUSEHOLD || Designed for use in professional laboratories, but is an ideal choice for science classrooms and household use. Can be repurposed for use in kitchens, to hold spices or utensils. Great for arts & crafts, for fountain pens and organization

50 hole,Diameter: 18.0mm/0.71in

These are great for making homemade chapsticks,storing ink samples,test tubes, lip balm, great for holding small cylinders upright

Suitable for test tubes with an OD ranging from 15mm to 18mm

For tubes with an OD ranging from 15mm to 18mm

Hole Diameter: 18mm

Color: Clear

PREMIUM QUALITY || Premium quality test tube stand featuring a sturdy wood construction that will stand up to the wear and tear of the lab

12 test tube capacity

Fits test tubes of up to 22mm in diameter

HIGH QUALITY: This floral tube rack is made of solid plastic, sturdy, light weight and durable to use.

HOLDS 21 TEST TUBES: Measures approx 25 * 10.5 * 7cm/9.8 * 4.1 * 2.75in (assembled). Can hold 21 pieces tubes totally.

DETACHABLE: This plastic tube holder comes 3 separated pieces, assemble required; can be stored put together or taken apart and laid flat, won't take up much more space.

HIGH QUALITY: This floral tube rack is made of solid plastic, sturdy, light weight and durable to use.

HOLDS 60 TEST TUBES(0.62"): Measures approx 25 * 10.5 * 7cm/9.8 * 4.1 * 2.75in (assembled). Can hold 60 pieces tubes totally.

DETACHABLE: This plastic tube holder comes 3 separated pieces, assemble required; can be stored put together or taken apart and laid flat, won't take up much more space.

Test Tube Shot Glasses With Rack: These colored test tubes are a great way to add fun and practicality to your science-themed birthday, summer pool party, or home gardening supplies

Multi-Use: The sturdy black test tube racks and plastic test tube containers can be used for shooters at parties, liquor shots, for chemistry supplies, or even as a propagate station

Material: The shot tubes and test tube holder rack are each made of high-quality polystyrene (PS) material that is durable and sturdy, ideal for long term use

HIGH QUALITY: This floral tube rack is made of solid plastic, sturdy, light weight and durable to use.

HOLDS 40 TEST TUBES(0.78"): Measures approx 25 * 10.5 * 7cm/9.8 * 4.1 * 2.75in (assembled). Can hold 40 pieces tubes totally.

DETACHABLE: This plastic tube holder comes 3 separated pieces, assemble required; can be stored put together or taken apart and laid flat, won't take up much more space.

Test Tubes: 16x125mm (0.5" x 5"), Yellow, Polypropylene, Break Resistant and Shatter-Proof

Caps: Hollow Bottom, White, HDPE

Cardboard Rack: Coated, 50 Holes, White

GREAT FOR TEST TUBE SHOTS: Displays your favorite chemistry-inspired shot glasses and is also great for keeping your favorite ground spices and spice blends within reach while you cook. Fill them with jello shots!

FOR 20mm' TEST TUBES: Each hole fits 3/4" (20mm') test tubes. Test tubes pictured are for display purposes only and are NOT included in this package. Search Amazon for item B07VFKZXJR for our set of 20 TEST TUBES.

HOLDS 12 TEST TUBES: This rack measures 7-7/8” x 4-1/2” x 3-1/4” and sits easily on any countertop, card table, or bar. It is easy to carry and provides a presentation that is sure to excite party-goers. Think of the Halloween or bachelorette parties!

GREAT FOR TEST TUBE SHOTS: Displays your favorite chemistry-inspired shot glasses and is also great for keeping your favorite ground spices and spice blends within reach while you cook. Fill them with jello shots!

FOR 20mm' TEST TUBES: Each hole fits 3/4" (20mm') test tubes. Test tubes pictured are for display purposes only and are NOT included in this package. Search Amazon for item B07VFKZXJR for our set of 20 TEST TUBES

HOLDS 6 TEST TUBES: This rack measures 8” x 4-1/2” x 3-1/4” and sits easily on any countertop, card table, or bar. It is easy to carry and provides a presentation that is sure to excite party-goers. Think of the Halloween or bachelorette parties!

Convenient all-in-one set

60 Tubes sized 16x150mm

60 Natural Color Flange Caps to fit 16mm

50 hole,Diameter: 16.2mm/0.64in

These are great for making homemade chapsticks,storing ink samples,test tubes, lip balm, great for holding small cylinders upright

Suitable for test tubes with an OD ranging from 12mm to 16mm

Test Tube is clear and transparent;

designed with 12 sockets, two layers, each socket is 17mm diameter.

Made of high quality plastic PMMA material in clear color

Made of high quality plastic PMMA material in clear color, designed with 12 sockets, two layers, each socket is 16mm/0.63" diameter.

Ideal for laboratory, can provide clear view of the tube contents and convenient insertion and removal of tubes.

For 10ml Test Tube.The hole DIA is 16mm/0.63 inch . Please check befor you but it dear friend !

90 Total 13x100 PS Test Tubes

90 Assorted Color Caps

White 90 Place Rack

For tubes with an OD ranging from 12mm to 13mm

Hole Diameter: 14mm

Color: Clear

For tubes with an OD ranging from 15mm to 18mm, and 12mm to 13mm

Ideal for many applications around the house, including parties, arts and crafts, and so on

Package Dimensions: 10.6 inch L x 8.7 inch W x 2.5 inch H

Multiple racks can be combined end by end or side by side together to meet your experimental requirements

Main Material : Plastic；Assorted Color : Blue, Green, White, Orange, Yellow

Package Content : 5 x Test Tube Rack

PREMIUM QUALITY || Premium quality test tube stand featuring a sturdy beech wood construction that will stand up to the wear and tear of the lab

DUAL FUNCTION || Rack holds 13 tubes - top shelf of rack holds seven tubes up to 20mm and bottom holds six tubes up to 25mm. Features 6 draining pins. Measures 10.25" wide, 3.25" long, and 8" tall, allowing it to fit in most lab spaces

GREAT FOR CLASSROOM, SCIENCE LABORATORIES AND HOUSEHOLD || Designed for use in professional laboratories, but is an ideal choice for science classrooms and household use. Can be repurposed for use in kitchens, to hold spices or utensils. Great for arts & crafts, for fountain pens and organization

Material: Made of high quality clear plastic material,safe,durable and sturdy

Size: The tube: 0.47"×3.9"/12mm x 100mm,volume: 8ml,test tubes rack: 8.46" x 4.33" x 2.48"/214mm x 110mm x 63mm,hole diameter: 13mm,50 holes

Test tubes with caps: The cap can be closely attached to the 12mm diameter test tube which has great performance of sealing and prevent liquid leaking effectively

Test Tubes: 16x125mm (0.5" x 5"), Natural, Polypropylene (25 Count)

Caps: Flange, Red, HDPE (25 Count)

Cardboard Rack: Coated, 25 Holes, White (1 Count)

Fits 20 - 25mm Test Tubes

Hole Diameter: 25mm

6 Holes and 6 Drying Pins

These vial racks are available for 2ml HPLC Autosampler vials

Vial rack can be stacked in the empty or filled with a set of vials

Alphanumeric and indexing are for easy tracking

Round holes, alphanumeric positions for easy identification.

Stainless steel, resistant to corrosion and autoclavable at 121℃.

Suitable for tubes of Dia. ≤16mm, 25 holes (5×5).

60 Total 16x150 PS Test Tubes

60 Assorted Color Caps

White 60 Place Rack

Material: Acrylic(PMMA). It can be used to place the test tube in an orderly manner in the laboratory, so as to save a lot of space, and can be used as a carrier to better move the test tube.

Construction is durable and chemical resistant.

Fit for 10ml,15ml tubes.