Best Test Tube Filler

12PK Test Tubes, 30ml - Bakelite Screw Cap with Rubber Liner - Borosilicate 3.3 Glass - 3.9\ x 1\ - Round Bottom - Leak Proof - Eisco Labs

INDUSTRIAL QUALITY || Pack of 12, round bottom test tubes with a 30ml capacity. Each test tube is made of high quality, heavy duty, Borosilicate 3.3 glass.
BAKELITE SCREW CAP || Each test tube is fitted with a Bakelite screw cap with a rubber liner to ensure a leak proof seal.
DIMENSIONS || Each test tube measures 3.9" tall and is 1" wide (including cap).
AUTOCLAVABLE || Autoclavable, with superior chemical durability. Low temperature gradient- can withstand high temperatures & thermal shocks.
GREAT FOR PROFESSIONAL LABORATORIES, CLASSROOMS & HOUSEHOLD || Superior chemical durability and heat tolerance. Designed for use in professional laboratories, but is an ideal choice for science classrooms and household use.

Constructed by 1.5mm thick SUS 304 stainless steel tubes.
Equipped with solid brass ceramic cartridge.
pure stainless steel construction with Polished Inner Surface, every drop of water passing through the pot filler is natural, no harmful materials added..
Equipped with IMLEZON Aerator provides a steady pressure and straight consistent 3.5 GPM water flow.
100% factory water pressure test and leak tightness test..
dual swing joints allows the pot filler to easily fold away when not in use..
1/2-Inch - 14 NPT standard inlet female thread for wall mounted. It is recommended to use water tape..

Made of 304 Stainless Steel, durable and light weight, easy to carry. 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..
Highly polished surface, no edges and sharps, chemical and corrosion resistant..
3 Layer, fit for 26 to 30mm test tubes, round holes, hold 8 tubes..
Economical and space-saving rack for applications in lab or at home..

Material: Made of high quality plastic material,safe,durable and sturdy.
Size: The tube: 29mm x 120mm,volume: 50ml,hole diameter of test tubes rack: 31mm,25 holes.
Screw caps: The cap can be closely screwed to the centrifuge tube which has great performance of sealing and prevent liquid leaking effectively.
Detachable centrifuge tubes rack: Please be CAREFUL when installing the test tube rack on account of the test tube holder is a little fragile.
Suitable scene: It is not only ideal for scientific experiments and storing beads,spices,liquids,seeds and more,but also can be used for mixing drinks to decorate Halloween,Christmas and theme parties perfectly.

60 PACK CANDY TUBES FOR GUMBALLS: The clear test tubes come with metal screw caps, high quality and non-toxic with good seal, ideal for DIY bath salt tubes and candy tube containers.
45ML DURABLE PLASTIC TUBES: The tubes are made of sturdy PET plastic, as transparent as glass, but not break easily, very safety test tube choice for children, as candy bottles rack, storage small items or use in lab.
LEAKPROOF AND PORTABLE: Unique screw caps design ensures the sealing performance, which can be used to storing handmade beads, powders and liquid, very convenient to storage and carry.
TUBE CONTAINERS SIZE: Vials Size: 5.5x0.98Inch (H x W), Vial Capacity: 1.5oz, large enough vials for bath salts, gumball, candy, jelly, chocolate bean, cookie nuts packaging.
MULTI-FUNCTION TEST TUBE: Widely used in DIY home project, party decorations and lab science test, such as homemade bath salt tubes, holding craft items bottles, chocolate M&M’s tubes.

General Hydroponics pH Control Kit contains everything you need to measures pH levels of your hydroponic grow reservoirs.
RELIABLE RESULTS: The streamlined testing system delivers fast, accurate, and easy-to read results every time.
ALL-IN-ONE KIT: Includes 8 oz. General Hydroponics pH Up Liquid, 8 oz. General Hydroponics pH Down Liquid, 1 oz. Test Indicator, test tube, an eyedropper, and a pH level chart.
THE PREFERRED WAY OF TESTING pH: Seasoned growers prefer our pH Test Kit to expensive electronic meters because of its reliability and ease-of- use.
EASY TO USE: To use, simply fill a test tube halfway with nutrients, add a few drops of pH test indicator, and observe the coloration of the liquid.
recommended pH for most plants is 5.5 to 6.5.

Minimum test tube or other object height is 3.25.
Use to hold tooth brushes, razors, or even pens.
Wooden test tube stand - 12 holes of 22 millimetre. Test stand measures 16.75 inch long 2.5 inch wide base and 4.5 inch tall.

Plastic test tubes size is 16 x 100mm.Capacity is 10ml.Test tube rack size is 9.9 x 4.4 x 2.6 inches/25.2 x 11.2 x 6.5 cm..
Our test tubes package includes 50 pcs Test Tubes with Caps and 1 pack 50-hole test tube rack..
The cap can be tightly attached to the test tube with a diameter of 16mm.It has good sealing performance and can effectively prevent liquid leakage..
Tubes clear is made of high quality plastic,sturdy.It is not only ideal for scientific experiments and storing beads,spices,liquids,seeds and more,but also can be used for mixing drinks to decorate Halloween,Christmas and scientific theme parties perfectly..
The rack has 3 Layer and 2 slots that each layer has a direction,slide the shelves in from one side and the other side has a lip that stops it.The rack has three layers of holes with a smallest hole at the bottom to keep tubes steady,and the large holes on the top and the second floor..

[HIGH QUALITY]: TOP quality oil filler adapter, constructed of hard steel for long lasting durability and reliability. Direct replacement for a proper....
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Cap has an angled filler tube, with tapered tip that easily fits into the vent tube of carburetor fuel bowl. 16.9 ounce capacity.