"gel+box"

These water-activated cleansing tissues are safe for glass or plastic lenses and contain an anti-fogging agent.

Combining high accuracy water level measurements with out-of-the-box convenience, this money-saving kit includes everything needed to start logging right away. It is ideal for monitoring water levels and temperatures in wells, streams, lakes, freshwater wetlands and tidal areas.

Explore solar energy with this innovative science kit designed to help students investigate energy transformations. A hinged box helps students discover how the angle of photovoltaic panels relative to the sun affects power output. Compare your experimental findings to online sun-angle calculators.

This product is a refill for K-7404 Ozone CHEMets visual kit for the analysis of ozone in water. It contains 30 self-filling CHEMets ampoules packaged securely in cardboard trays and box. R-7404 Ozone CHEMets refill is compatible with C-7404 low range ozone comparator and C-7405 high range ozone comparator.

Quickly Absorbs Chemicals and Liquids

Tubes feature an inner wall coated with spray-dried sodium heparin or lithium heparin.

Pre-mixed, and ready to use, this master mix contains DNA polymerase, dNTPs, MgCl₂, and reaction buffers at optimal concentrations for the amplification of DNA via PCR. Its special formulation allows for direct loading of PCR samples into agarose gels as well as tracking the migration during electrophoresis without the need for loading dyes. Simply add template, primers, and nuclease-free water, available separately. Mater Mix reduces risk of contamination. Includes enough for 100 reactions. Note: Can be stored at 4 °C for up to six weeks, or −20 °C for longer.

The R-1402 Ammonia/Monochloramine CHEMets® refill (HBA) is a refill for K-1420 Ammonia CHEMets® test kit (HBA) or K-6802 Monochloramine CHEMets® test kit.It contains 30 self-filling CHEMets® ampoules packaged securely in cardboard trays and box. This product is meant to refill your CHEMets® if you already have the necessary comparator(s) and accessory solution(s).

Absorbs the widest range of acids, bases and unknown liquids, even those with high concentrations like 98% sulfuric acid and 30% sodium hydroxide. Chemical-resistant mat won't degrade or cause a dangerous reaction upon contact with corrosive spills. Eight layers of 100% polypropylene are thermally bonded to make PIG Mat exceptionally strong; won't rip, tear or fray even when saturated. Exclusive dimple pattern speeds wicking of liquid throughout mat for faster, easier cleanup. Highly absorbent, fine-fiber construction won't leave behind liquids or fiber residue.

Packed response bags.

Kit K-9203 comes in a cardboard box and contains everything needed to perform 30 tests: thirty ampoules, acidifier solution, activator powder, 25 ml sample cup, ampoule blank, and instructions. This kit requires the use of a CHEMetrics direct-readout Photometer or a spectrophotometer capable of accepting a 13 mm diameter round cell. Instrument sold separately.

You can own one of the oldest and rarest meteorites of lunar origin.

Exclusive "hamouflage" top layer saves on product and disposal costs; absorbed grime is invisible, so you'll leave mat in place longer and save money

Bacdown Handsoap combines soothing, coconut-based surfactants to provide a gentle handsoap that may be used repeatedly with minimal skin drying

Ideal for portable writing needs in critical environments, this unique and durable clipboard is constructed of rigid polypropylene with a durable plastic clip mechanism for longlasting use

For use in specimen collection, wound care, application of topical dressings, cosmetic applications/tattoos, or general purpose