MICREWTUBE® Family

A TUBE FOR EVERY APPLICATION


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Microtube Selection Chart

The Micrewtube Family of tubes are ideal for freezer storage, boiling applications, centrifugation etc. and will fit in most standard microcentrifuge rotors. The tubes and screw caps are made with heavy wall construction are built to last. All Tubes and Caps are certified RNase, DNase and Pyrogen safe.
* Not all available tubes are listed on this website, please call for information and pricing on additional Micrewtube products.

T334 – Micrewtube ® WITH O-RING SEAL SCREW CAP Similar to the T332 Series but without the “tethered cap” feature. This series of tubes is available either plain or with printed graduations and white marking area for sample identification. The caps do not have the attachment loops for users who prefer to remove the caps completely from the tubes when filling or sampling. These microcentrifuge tubes have all the other fine features stated in the general description. Perfect for cryogenic work. Non skirted tubes can be centrifuged up to 20,000g. Will withstand temperatures from -196 °C to +121 °C. Made of polypropylene

T341T - Micrewtube® Tubes Only Available in plain or graduated configuration, the latter being provided with a white marking area for sample identification. Can be used at extreme temperatures from -196 °C to +121 °C. Made of polypropylene.

T340-OS - Colored Closures With O-Ring Seal The cap is molded with a deep internal lip that fits snugly against the interior wall of the tube thus preventing the contents from coming in contact with the seal or threads, thereby reducing the chances of sample contamination. The cap’s high profile facilitates manipulation especially in aseptic procedures. All tubes and closures are manufactured in a clean environment. Closures in natural color can be COLOR CODED by the use of T345 Series Colored Capinsert™ inserted on the top of the closure. This is accomplished without removing the cap.

T340OSL - Colored Closures with O-Ring Seal and Loop The cap is molded with a deep internal lip that fits snugly against the interior wall of the tube thus preventing the contents from coming in contact with the seal or threads, thereby reducing the chances of sample contamination. The cap’s high profile facilitates manipulation especially in aseptic procedures and can remain attached to the tube in order to eliminate mix-ups and contamination. Closures in natural color can be COLOR CODED by the use of T345 Series Colored Capinsert™ inserted on the top of the closure. This is accomplished without removing the cap.

T340-FT - Colored Closures With Flat Top These closures have a flat top to accommodate automatic capping machines in packaging industries.

T345 - Capinsert™ for Color Coding 

 The Capinsert™ is used to color code a Micrewtube® and a multitude of other Simport products according to your specific needs. It is inserted on top of the closure and has a write-on frosted area for sample identification. Made of polypropylene.

Product Name & Number
 Description / Sample Capacity Unit Size Price Order

(+) Larger View 		T334 Series - 0.5ml Tubes, SS, O-ring
T334-2S

0.5ml self-standing Micrewtube with pre-attached cap with o-ring seal, non-graduated, sterile

 500 Tubes $97.00 Add to Cart

(+) Larger View 		T334 Series - 0.5ml Tubes, SS, O-ring, Graduations
T334-2SPR

0.5ml self-standing Micrewtube with pre-attached cap with o-ring seal, white marking area and graduated, sterile

 500 Tubes $116.00 Add to Cart

(+) Larger View 		T334 Series - 1.5ml Tubes, SS, O-ring
T334-4S

1.5ml self-standing Micrewtube with pre-attached cap with o-ring seal, non-graduated, sterile

 500 Tubes $97.00 Add to Cart

(+) Larger View 		T334 Series - 1.5ml Tubes, SS, O-ring, Graduations
T334-4SPR

1.5ml self-standing Micrewtube with pre-attached cap with o-ring seal, white marking area and graduated, sterile

 500 Tubes $116.00 Add to Cart

(+) Larger View 		T334 Series - 1.5ml Tubes, w/out skirt, O-ring
T334-5S

1.5ml non-skirted Micrewtube with pre-attached cap with o-ring seal, non-graduated, sterile

 500 Tubes $97.00 Add to Cart

(+) Larger View 		T334 Series - 1.5ml Tubes, w/out skirt, O-ring, Graduations
T334-5SPR

1.5ml non-skirted Micrewtube with pre-attached cap with o-ring seal, white marking area and graduated, sterile

 500 Tubes $116.00 Add to Cart

(+) Larger View 		T334 Series - 2.0ml Tubes, SS, O-ring
T334-6S

2.0ml self-standing Micrewtube with pre-attached cap with o-ring seal, non-graduated, sterile

 500 Tubes $97.00 Add to Cart

(+) Larger View 		T334 Series - 2.0ml Tubes, SS, O-ring, Graduations
T334-6SPR

2.0ml self-standing Micrewtube with pre-attached cap with o-ring seal, white marking area and graduated, sterile

 500 Tubes $116.00 Add to Cart

(+) Larger View 		T334 Series - 2.0ml Tubes, w/out skirt, O-ring
T334-7S

2.0ml non-skirted Micrewtube with pre-attached cap with o-ring seal, non-graduated, sterile

 500 Tubes $97.00 Add to Cart

(+) Larger View 		T334 Series - 2.0ml Tubes, w/out skirt, O-ring, Graduations
T334-7SPR

2.0ml non-skirted Micrewtube with pre-attached cap with o-ring seal, white marking area and graduated, sterile

 500 Tubes $116.00 Add to Cart

(+) Larger View 		T341 Series - 0.5ml Tubes Only, SS
T341-2T

0.5ml self-standing Micrewtube without cap, non-graduated, sterile

 1000 Tubes $57.00 Add to Cart

(+) Larger View 		T341 Series - 1.5ml Tubes Only, SS
T341-4T

1.5ml self-standing Micrewtube without cap, non-graduated, sterile

 1000 Tubes $57.00 Add to Cart

(+) Larger View 		T341 Series - 1.5ml Tubes Only, w/out skirt
T341-5T

1.5ml non-skirted Micrewtube without cap, non-graduated, sterile

 1000 Tubes $57.00 Add to Cart

(+) Larger View 		T341 Series - 2.0ml Tubes Only, SS
T341-6T

2.0ml self-standing Micrewtube without cap, non-graduated, sterile

 1000 Tubes $57.00 Add to Cart

(+) Larger View 		T341 Series - 2.0ml Tubes Only, w/out skirt
T341-7T

2.0ml non-skirted Micrewtube without cap, non-graduated, sterile

 1000 Tubes $57.00 Add to Cart

(+) Larger View 		T340-OS Series - Cap w/o-ring seal, Natural
T340-NOS

Cap only with o-ring seal compatible with all Micrewtube tubes.  Natural.

 1000 Caps $99.00 Add to Cart
T340-OS Series - Cap w/o-ring seal, Blue
T340-BOS		 Cap only with o-ring seal compatible with all Micrewtube tubes.  Blue. 1000 Caps $99.00 Add to Cart

(+) Larger View 		T340-OS Series - Cap w/o-ring seal, Green
T340-GOS

Cap only with o-ring seal compatible with all Micrewtube tubes.  Green.

 1000 Caps $99.00 Add to Cart

(+) Larger View 		T340-OS Series - Cap w/o-ring seal, Lilac
T340-LOS

Cap only with o-ring seal compatible with all Micrewtube tubes.  Lilac.

 1000 Caps $99.00 Add to Cart

(+) Larger View 		T340-OS Series - Cap w/o-ring seal, Red
T340-ROS

Cap only with o-ring seal compatible with all Micrewtube tubes.  Red.

 1000 Caps $99.00 Add to Cart

(+) Larger View 		T340-OS Series - Cap w/o-ring seal, Yellow
T340-YOS

Cap only with o-ring seal compatible with all Micrewtube tubes.  Yellow.

 1000 Caps $99.00 Add to Cart

(+) Larger View 		T340-OS Series - Cap w/o-ring seal, White
T340-WOS

Cap only with o-ring seal compatible with all Micrewtube tubes.  White.

 1000 Caps $99.00 Add to Cart

(+) Larger View 		T340-OSL Series - Cap w/o-ring seal and loop, Natural
T340-NOSL

Cap only with o-ring seal and attachment loop compatible with all Micrewtube tubes.  Natural.

 1000 Caps $107.00 Add to Cart

(+) Larger View 		T340-OSL Series - Cap w/o-ring seal and loop, Blue
T340-BOSL

Cap only with o-ring seal and attachment loop compatible with all Micrewtube tubes.  Blue.

 1000 Caps $107.00 Add to Cart

(+) Larger View 		T340-OSL Series - Cap w/o-ring seal and loop, Green
T340-GOSL

Cap only with o-ring seal and attachment loop compatible with all Micrewtube tubes.  Green.

 1000 Caps $107.00 Add to Cart

(+) Larger View 		T340-OSL Series - Cap w/o-ring seal and loop, Lilac
T340-LOSL

Cap only with o-ring seal and attachment loop compatible with all Micrewtube tubes. Lilac.

 1000 Caps $107.00 Add to Cart

(+) Larger View 		T340-OSL Series - Cap w/o-ring seal and loop, Red
T340-ROSL

Cap only with o-ring seal and attachment loop compatible with all Micrewtube tubes. Red.

 1000 Caps $107.00 Add to Cart

(+) Larger View 		T340-OSL Series - Cap w/o-ring seal and loop, Yellow
T340-YOSL

Cap only with o-ring seal and attachment loop compatible with all Micrewtube tubes. Yellow.

 1000 Caps $107.00 Add to Cart
T340-OSL Series - Cap w/o-ring seal and loop, White
T340-WOSL		 Cap only with o-ring seal and attachment loop compatible with all Micrewtube tubes. White. 1000 Caps $107.00 Add to Cart

(+) Larger View 		T340-FT Series - Flat Cap w/o-ring seal, Natural
T340-NOSFT

Flat top cap only with o-ring seal compatible with all Micrewtube tubes.  Accommodates automatic capping machines. Natural.

 1000 Caps $99.00 Add to Cart

(+) Larger View 		T340-FT Series - Flat Cap w/o-ring seal, Blue
T340-BOSFT

Flat top cap only with o-ring seal compatible with all Micrewtube tubes.  Accommodates automatic capping machines. Blue.

 1000 Caps $99.00 Add to Cart

(+) Larger View 		T340-FT Series - Flat Cap w/o-ring seal, Green
T340-GOSFT

Flat top cap only with o-ring seal compatible with all Micrewtube tubes.  Accommodates automatic capping machines. Green.

 1000 Caps $99.00 Add to Cart

(+) Larger View 		T340-FT Series - Flat Cap w/o-ring seal, Lilac
T340-LOSFT

Flat top cap only with o-ring seal compatible with all Micrewtube tubes.  Accommodates automatic capping machines. Lilac.

 1000 Caps $99.00 Add to Cart

(+) Larger View 		T340-FT Series - Flat Cap w/o-ring seal, Red
T340-ROSFT

Flat top cap only with o-ring seal compatible with all Micrewtube tubes.  Accommodates automatic capping machines. Red.

 1000 Caps $99.00 Add to Cart

(+) Larger View 		T340-FT Series - Flat Cap w/o-ring seal, Yellow
T340-YOSFT

Flat top cap only with o-ring seal compatible with all Micrewtube tubes.  Accommodates automatic capping machines. Yellow.

 1000 Caps $99.00 Add to Cart

(+) Larger View 		T340-FT Series - Flat Cap w/o-ring seal, White
T340-WOSFT

Flat top cap only with o-ring seal compatible with all Micrewtube tubes.  Accommodates automatic capping machines. White.

 1000 Caps $99.00 Add to Cart

(+) Larger View 		T345 Series - Capinsert, Blue
T345B

Color coding capinsert, fits on top of non-flat top micrewtube caps. Blue.

 500 Inserts $12.00 Add to Cart

(+) Larger View 		T345 Series - Capinsert, Green
T345G

Color coding capinsert, fits on top of non-flat top micrewtube caps. Green.

 500 Inserts $12.00 Add to Cart

(+) Larger View 		T345 Series - Capinsert, Lilac
T345L

Color coding capinsert, fits on top of non-flat top micrewtube caps. Lilac.

 500 Inserts $12.00 Add to Cart

(+) Larger View 		T345 Series - Capinsert, Orange
T345O

Color coding capinsert, fits on top of non-flat top micrewtube caps. Orange.

 500 Inserts $12.00 Add to Cart

(+) Larger View 		T345 Series - Capinsert, Pink
T345P

Color coding capinsert, fits on top of non-flat top micrewtube caps. Pink.

 500 Inserts $12.00 Add to Cart

(+) Larger View 		T345 Series - Capinsert, Red
T345R

Color coding capinsert, fits on top of non-flat top micrewtube caps. Red.

 500 Inserts $12.00 Add to Cart

(+) Larger View 		T345 Series - Capinsert, Violet
T345V

Color coding capinsert, fits on top of non-flat top micrewtube caps. Violet.

 500 Inserts $12.00 Add to Cart

(+) Larger View 		T345 Series - Capinsert, White
T345W

Color coding capinsert, fits on top of non-flat top micrewtube caps. White.

 500 Inserts $12.00 Add to Cart

(+) Larger View 		T345 Series - Capinsert, Yellow
T345Y

Color coding capinsert, fits on top of non-flat top micrewtube caps. Yellow.

 500 Inserts $12.00 Add to Cart

(+) Larger View 		T345 Series - Capinsert, Assorted
T345AS

Color coding capinsert, fits on top of non-flat top micrewtube caps. 100 ea of Blue, Lilac, Red, Yellow and White.

 500 Inserts $12.00 Add to Cart