Rubber Stopper, Size #6
Fits 250ml Pyrex Erlenmeyer Flask; 250ml Bomex Erlenmeter Flask; and 250ml and 500ml Bomex Florence Flask. All of our black rubber stoppers are laboratory grade. Available as solid or 1-hole. NC-0961
$1.00Search Products
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Two Neck Round Bottom Flask, 24/40 Joints, 1000mL
Two neck, one center and one angled side neck, round bottom flask with standard taper 24/40 joints. Features heavy wall spherical body and 1000mL capacity. NC-13764
$64.95
Universal T-Adapter, 1.25 inch (93625)
Clearance priced! MSRP is $44.95 - NOW $25.46!
The Celestron Universal T-Adapter connects a DSLR or SLR camera to a refractor for prime focus photography. NC-8138 $25.46
Wingspan Mega Ceramic Mug, 20 oz.
Fill this Wingspan mug with a full 20 ounces of your favorite tea or coffee and spend the morning watching the birds from your window. Let it inspire your creativity to soar and your most fanciful ideas to take flight. Dishwasher & Microwave Safe. NC-14659
$13.46
15 cm Filter Paper, Qualitative 2.0 micron - Slow, Pk/100
SLOW flow. This slow flow rate grade with very good retention is used in the filtration of fine precipitates and super phosphates. Also recommended for boiler water analysis applications and gas filtration. NC-13774
$24.95
Aluminum Potassium Sulfate, 2.5kg
Lab grade Crystals — Appears as white, odorless crystals having a stringent taste. Soluble in water, creating acidic solution. Non-combustible. NC-2424
$64.95
Bogen's Universal pH Indicator Solution, 4 oz.
Universal Indicator solution will change color over a pH range of 1 to 10. Just a few drops added to a liquid sample will indicate its pH. This 4oz. bottle ships Standard Ground only. NC-1602
$21.95
Borosilicate Clear Glass Tubing, 12mm O.D., 15 inch, Pk/2
• O.D: 12mm
• I.D: 10mm
• Wall: Standard (1mm)
• Length: 381mm (15")
Sold as Pk/2 NC-10895
Cupric Nitrate, 100g
Lab grade. Crystal — This is used in several patina formulas. See More Info for formula list. Restricted to Standard Ground only. NC-0303
$15.95
Magnetic Stir Bar, Oval PTFE, 70 x 20mm
This oval-shaped, top quality magnetic spin bar features an ALNICO V magnetic core, assuring high strength magnetization. The inert nonstick PTFE coating resists harsh chemicals, is resistant to scratching and high temperatures. Too large to fit through a 24/40 joint. NC-14293
$26.95
pH Test Paper, 5.5-8.0 Range, 15 ft. roll
A 5.5 to 8.0 range pH test paper in a single roll dispenser with color chart. NC-1235
$9.99
Rubber Stopper, Size #6.5
All of our black rubber stoppers are laboratory grade. Available as solid or 1-hole. NC-0970
$1.05