NEPTUNE tubes


Neptune Plastics
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… Tips, Tubes, Plates
Biotix offers a wide array of premium quality tubes for your most demanding research needs. We offer 0.2ml and 0.6ml thin-wall PCR tubes as well as 0.2ml microtube strips available with either attached or detached caps. All of our thin-wall tubes allow for efficient heat transfer and fast cycling times, and are compatible with standard 96-well heat blocks.

Our Neptune™ brand 1.6ml microcentrifuge tubes are ideal for a wide array of laboratory procedures. Available in both clear and assorted colors these tubes can withstand up to 24,000 RCF and are boil proof up to 30 minutes. They are also available in Biotix’s proprietary S3 polymer designed to maximize sample recovery. We also offer a fine selection of cryovials and cryotubes designed for cryogenic sample storage. Available with and without locking bases these tubes feature special thread designs and silicone O-rings to ensure long term storage for your samples.

Biotix is pleased to offer the Neptune™ brand Mini-tube system designed for labs in need of the functionality of a tube but require the 96-well format for robotics. The system features a rack with standard 8 x 12 format with preracked 1.1ml, 8 or 12 strip mini-tubes. Product is available in both sterile and non-sterile formats.

All of our products are manufactured under stringent controls in our ISO 9001:2000 certified automated facility. Our manufacturing process continually monitors the quality of the product by visual examination with magnification for defects, contamination, or process damage. All of our
sterile packaged products are electron beam irradiated in an electronically controlled process, and are tested by 14 day cultures to monitor pre and post irradiation bacterial and fungal bio-loads.

Our newest product offering is our Neptune™ brand centrifuge tubes. Available in both 15 and 50ml sizes these high quality polypropylene tubes are designed to withstand up to 9400 RCF. Our tubes are stamped with specially formulated inks which are fully autoclavable and resistant to most laboratory solvents.

Tube Selection Guide
PCR Tubes
Catalog No Description Volume
3423 Flat Cap Thinwall Tube 0.2ml
3425 Dome Cap Thinwall Tube 0.2ml
3437 Flat Cap Thinwall Tube 0.6ml
3428 Strip Tubes (8) with Attached Caps 0.2ml
3426 Strip Tubes (8 & 12) 0.2ml
3427 Strip Caps (8 & 12) 0.2ml
Snap Cap Microcentrifuge Tubes
Catalog No Description Volume
3435 Flat Cap Micro Tube 0.6ml
3445 Ultra Clear Graduated Micro Tube 1.6ml
3465 Graduated Micro Tube 2.0ml
Screw Cap Tubes
Catalog No Description Volume
Various Screw Cap tubes 0.5 to 2.0ml
Cryo Tubes & Vials
Catalog No Description Volume
Various Cryo Vials 1.2 to 5.0ml
Various Cryo Tubes 0.5 to 2.0ml
Other Tubes and Supplies
Catalog No Description Volume
Various Mini Tube System 1.1ml
Various Centrifuge Tube 15 and 50ml
0.2ml Thin Wall PCR Tubes
Our 0.2ml microtubes for PCR are made of high quality virgin polypropylene and feature thin walls for accelerated heat transfer. Biotix microtubes are compatible with most leading thermal cyclers. Tubes and caps are autoclavable and available in six different colors.
Cat# Description Type Quantity
3423 0.2ml Flat cap PCR tubes Clear 1000/bag
3423.S 0.2ml Flat cap PCR tubes Clear/Sterile 10 bags of 100
3423.AS 0.2ml Flat cap PCR tubes Assorted/Sterile 10 bags of 100
3425 0.2ml Domed cap PCR tubes Clear 1000/bag
3425.S 0.2ml Domed cap PCR tubes Clear/Sterile 10 bags of 100
3425.AS 0.2ml Domed cap PCR tubes Assorted/Sterile 10 bags of 100
Available in Blue, Green, Orange, Red, Lavender, Clear and Assorted. Please specify color when ordering, add color initial to catalogue number. Example 3423.B for Blue
0.2ml PCR Microtube 8 Strips with attached caps
The 0.2ml PCR 8 Strip Microtubes with attached caps feature a uniform thin-wall design for accelerated heat transfer and short cycling times. Product features a dome shaped cap to ensure adequate contact with the lid of a thermal cycler. Attached caps resolve concernswith cross contamination that may come from the misalignment of strip caps.

The microtube strip’s distance from tube to tube is compatible with standard 96 well heat blocks. These strip tubes are composed of virgin polypropylene and are fully autoclavable (121°C, 15psi for 15 minutes).

Cat# Description Type Quantity
3428.8 8 strip tubes 0.2ml PCR with
attached domed caps
Clear 120 strips
3428.8S 8 strip tubes 0.2ml PCR with
attached domed caps
Clear/Sterile 120 strips
3428.8A 8 strip tubes 0.2ml PCR with
attached domed caps
Assorted 120 strips
3428.8AS 8 strip tubes 0.2ml PCR with
attached domed caps
Assorted/Sterile 120 strips
0.2ml & 0.3ml Microtube & Tube Cap Strips
The 0.2ml PCR 8 or 12 Strip Microtube with detached cap features the same uniform thin wall design for accelerated heat transfer and short cycling times as our attached cap strips, catalog # 3428.8. Sold separately, our strip caps (Catalog # 3427.8) incorporate the dome shape to ensure an adequate seal with the thermal cycler lid. Detached strip caps provide peace of mind because they are disposable and allow for a fresh cap strip after each tube opening.

Product is manufactured from virgin polypropylene and is compatible with standard 96-well heat blocks. *Autoclavable (121°C, 15psi for 15 minutes).

Cat# Description Type Quantity
3426.8 8 strip tubes 0.2ml PCR without caps Clear 125 strips
3426.8S 8 strip tubes 0.2ml PCR without caps Clear/Sterile 125 strips
3426.8A 8 strip tubes 0.2ml PCR without caps Assorted 125 strips
3426.8AS 8 strip tubes 0.2ml PCR without caps Assorted/Sterile 125 strips
3427.8 8 strip caps for 3426.8 tubes Clear 125 strips
3427.8S 8 strip caps for 3426.8 tubes Clear/Sterile 125 strips
3427.8A 8 strip caps for 3426.8 tubes Assorted 125 strips
3427.8AS 8 strip caps for 3426.8 tubes Assorted/Sterile 125 strips
3459.8 8 strip tubes 0.2ml PCR with caps Clear 125 strips
3426.12 12 strip tubes 0.2ml PCR without caps Clear 80 strips
3426.12S 12 strip tubes 0.2ml PCR without caps Clear/Sterile 80 strips
3426.12A 12 strip tubes 0.2ml PCR without caps Assorted 80 strips
3426.12AS 12 strip tubes 0.2ml PCR without caps Assorted/Sterile 80 strips
3427.12 12 strip caps for 3426.12 tubes Clear 80 strips
3427.12S 12 strip caps for 3426.12 tubes Clear/Sterile 80 strips
3427.12A 12 strip caps for 3426.12 tubes Assorted 80 strips
0.6ml Thin Wall PCR Tubes
Specially designed for PCR, our 0.6ml tubes features uniform micro-thin walls for efficient heat transfer and fast cycling times.The unique cap provides a no leak seal which prevents evaporation during cycling, but still remains easy to open. Sterile products are packaged as one zip-lock bag containing 10 heat sealed bags of 100 tubes each 
Cat# Description Type Quantity
3437 0.6ml thin walled PCR tubes Clear 1000/bag
3437.A 0.6ml thin walled PCR tubes Assorted 1000/bag
3437.AS 0.6ml thin walled PCR tubes Assorted/Sterile 10 bags of 100
0.6ml Microcentrifuge Tubes
These flat cap graduated tubes are frosted on top and side for convenient sample identification. Graduation at 0.1, 0.2, 0.3, 0.5 and 0.6ml make them ideal for many uses. Sterile product is packaged in a zip-lock bag containing 10 sealed zip-lock pouches of 100 tubes. 
Cat# Description Type Quantity
3435 0.6ml flat cap microcentrifuge
tubes
Clear 1000/bag
3435.S 0.6ml flat cap microcentrifuge
tubes
Clear/Sterile 10 bags of 100
3435.A 0.6ml flat cap microcentrifuge
tubes
Assorted 1000/bag
3435.AS 0.6ml flat cap microcentrifuge
tubes
Assorted/Sterile 10 bags of 100
3435.AS3 0.6ml flat cap microcentrifuge
tubes
Assorted S³ Polymer/Sterile 10 bags of 100
1.6ml Microcentrifuge Tubes
With graduation at 0.1, 0.5, 1.0 and 1.5ml, a frosted flat cap and side, these microcentrifuge tubes makes sample identification a snap. Our microtubes are available in S³ low retention polymer for ultra low sample adhesion.

Sterile tubes are packaged in a zip-lock bag, containing 10 sealed zip-lock pouches of 50 tubes each.

Cat# Description Type Quantity
3445 Ultra-clear graduated
microcentrifuge tubes
Clear 500/bag
3445.A Ultra-clear graduated
microcentrifuge tubes
Assorted 500/bag
3445.S Ultra-clear graduated
microcentrifuge tubes
Clear/Sterile 10 bags of 50
3445.AS Ultra-clear graduated
microcentrifuge tubes
Assorted/Sterile 10 bags of 50
3445.S3 Ultra-clear graduated
microcentrifuge tubes
Clear S³ Polymer 10 bags of 50
3445.AS3 Ultra-clear graduated
microcentrifuge tubes
Assorted S³ Polymer/Sterile 10 bags of 50
Available in Blue, Green, Orange, Yellow, Lavender, Red, Clear and Assorted. Please specify color when ordering, add color initial to catalogue number. Example 3445.B for Blue
2.0ml Graduated Microcentrifuge Tubes
This 2.0ml graduated microcentrifuge tube features labeled graduations at 0.5, 1.0, 1.5 and 2.0ml for volume verification. The tube’s cap and side are frosted for sample labeling. The cap incorporates a 0.28mm piercing port that is located in the center of the cap for sample removal. Sterile tubes are packaged in a zip-lock bag containing 10 heat sealed bags of 50 tubes each.
Cat# Description Type Quantity
3465 2ml graduated microcentrifuge tubes Clear 500/bag
3465.A 2ml graduated microcentrifuge tubes Assorted 500/bag
3465.S 2ml graduated microcentrifuge tubes Clear/Sterile 10 bags of 50
Screw Cap Microcentrifuge Tubes
Neptune™ brand screw cap microcentrifuge tubes with an O-ring seal cap ensure a positive leakproof seal, time after time, retaining sample integrity under even the most adverse conditions. They are ideal for freezer storage, centrifugation and they fit most standard microcentrifuge rotors.

Cryotubes vs Standard Tubes

Standard screw-cap tubes use neoprene O-rings and are designed for general laboratory use down to -80°C. Below this temperature the neoprene fails to offer an effective seal. Cryotubes and vials feature special thread designs, higher grade polymers, and silicone O-rings to ensure secure long term storage for your precious cell cultures.
Cat# Description Size Type Quantity
3433.S Self standing Screw cap tubes with O-ring 0.5ml Sterile 500/bag
3443 Self standing Screw cap tubes with O-ring 1.5ml Non Sterile 500/bag
3463.S Self standing Screw cap tubes with O-ring 2.0ml Sterile 500/bag
3444.S Conical base Screw cap tubes with O-ring 1.5ml Sterile 500/bag
Cryo Vials
Tube are designed for the storage of biological material at temperatures as low as -190ºC, but should be stored in the gas phase of liquid nitrogen. The cap features a long skirt for one hand aseptic techniques, and our thread design allows tightening or removal with a mere 1 1/4 turn. A specially designed lip inside the cap ensures a leak-proof seal. The cap and tube are made of virgin polypropylene with matched thermal coefficients to further ensure leak proof performance.

Cryotubes vs Cryovials
Cryovials are the traditional storage container and come in 5 sizes including large volume 3-5ml vials. Cryotubes feature the same dimensions as standard screw-cap tubes and a centrifugation collar for easy spins. The smaller diameter also allows you to store 19 more samples per standard cryo box. Both cryostorage containers feature medical grade silicone O-rings and other features to ensure secure long term storage of your precious cells.

Liquid vs Vapor Phase Storage
All cryogenic containers are designed for vapor phase storage, but can withstand contact with liquid phase nitrogen. We advise against routine liquid phase storage because of the phase change explosive potential of liquid
N2 when exposed to room temperatures.

Cat# Description Size Type Quantity
3102 Cryo Vials with locking base 2.0ml Sterile 500/bag
3103 Cryo Vials with locking base 3.0ml Sterile 100/bag
3120.A Colored cap inserts All sizes Non Sterile 500/bag
Cryo Tubes
Biotix’s cryotubes offer significant advantages over traditional cryovial storage, and at a lower price! The smaller outside diameter and molded spin collar allows for use in standard microcentrifuge rotors, so you can spin, resuspend and freeze all in the same tube. You can store 100 tubes in the same space as 81 cryovials. Manufactured from virgin grade polypropylene with silicone O-rings to seal at all temperatures. Biotix’s cryotubes are not just another screw cap tube, but a revolutionary cryostorage solution. Where else can you get more for less?

Cryotubes vs Standard Tubes
Cryo tubes and vials feature special thread designs, higher grade polymers and silicone O-rings to ensure secure long term storage for your precious cell cultures.
Standard screwcap tubes use neoprene O-rings and are designed for general laboratory use down to -80°C. Below this temperature the neoprene fails to offer an effective seal.

Cat# Description Size Type Quantity
3470 Cryo Vials with locking base 0.5ml Sterile 500/bag
3471 Cryo Vials with locking base 1.5ml Sterile 500/bag
3472 Cryo Vials with locking base 2.0ml Sterile 500/bag
15 & 50ml Centrifuge Tubes
Neptune™ brand 15 and 50ml Centrifuge Tubes are manufactured from virgin polypropylene and are designed to handle the rigors of everyday lab work. Tubes feature easy to read graduation marks and ample writing space that measures 20mm wide by 50mm in length.

The 15ml tube has black graduation markings from 1.5 to 15ml and is centrifuge speed rated to 6,000 RCF. The 50ml tube has graduation markings for measurements of 5-50ml and is centrifuge speed rated to 9,400 RCF. All tubes include a flat top rim seal cap manufactured from highdensity polyethylene. The top of the cap has a frosted writing surface for labeling. Biotix’s engineers incorporated large ridges for increased grip when wearing gloves and a 3/4-turn closure, thereby increasing speed and allowing for one-handed operation.

Easy on/off
leak resistant caps
Large writing surface
for labeling (20mm x
50mm)
Available in bulk or
racked configurations
Designed for
one-handed operation
Cat# Description Type Packaging
2543 15ml tubes wth plug seal caps Sterile 10 racks of 50
2544 15ml tubes wth plug seal caps Sterile 10 bags of 50
2553 50ml tubes wth plug seal caps Sterile 20 racks of 25
2554 50ml tubes wth plug seal caps Sterile 10 bags of 50
Mini-tube System
This system provides you with pre-racked 1.1ml strip minitubes in standard 96-well format. This is an ideal system for microplate to tube transfer or manual to robotic process transfer. The Minitube System provides you with pre-racked 1.1ml, 8 strip minitubes; an ideal system for microplate to tube transfers or manual to robotic process transfer.

The system features a standard 8 x 12 format for convenient, multichannel pipetting, and the alpha-numeric labeled, non-reversing rack and lid ensure positive sample identification. Condensation rings above each tube minimize cross contamination between wells, and the system is completely autoclavable (except for optional mini-cap strips). The rack base is fully compatible with all popular robotic instruments.

Cat# Description Size Type Quantity
2600 1.1ml tubes in Bulk Single Non Sterile 960 tubes
2600.8 1.1ml tubes in Bulk 8 strips Non Sterile 120 strips
2601 1.1ml tubes in Racks Single Non Sterile 960 tubes
2601.S 1.1ml tubes in Racks Single Sterile 960 tubes
2601.8 1.1ml tubes in Racks 8 strips Non Sterile 120 strips
2601.8S 1.1ml tubes in Racks 8 strips Sterile 120 strips
2602.8 Strip caps for Mini-tubes 8 strips Non Sterile 120 strips
2602.8S Strip caps for Mini-tubes 8 strips Sterile 120 strips
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