Lab Supplies

Economy Magnetic Stir Bar, Cylindrical PTFE, 25 x 8mm, Pk/5

This PTFE economical cylindrical-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. Sold as a pack of five stir bars. NC-14550

$16.95

Rubber Stopper, Size #8

Fits 1000ml and 2000ml Pyrex Florence Flasks; 1000ml Bomex Florence Flask; 1000ml Pyrex Filter Flask; and 500ml Bomex Filter Flask. All of our black rubber stoppers are laboratory grade. Available only with 1-hole. NC-0963

$1.65

Economy Magnetic Stir Bar, Cylindrical PTFE, 50 x 8mm, Pk/5

This PTFE economical cylindrical-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. Sold as a pack of five stir bars. NC-14551

$24.95

Rubber Stopper, Size #10

Fits 2000ml Pyrex Erlenmeyer Flask; 2000ml Borosilicate Florence Flask; 5000ml Borosilicate Florence Flask; 1000ml Borosilicate Filter Flask. All of our black rubber stoppers are laboratory grade. Available as solid or 1-hole. NC-0952

$2.50

Rare Earth Magnetic Stir Bar, Oval PTFE, 25 x 12mm

This oval-shaped, top quality magnetic spin bar features a Rare Earth Neodymium magnetic core, assuring extremely high strength magnetization coupled with almost total resistance to demagnetization. The inert nonstick PTFE coating resists harsh chemicals, is resistant to scratching and high temperatures. NC-14084

$12.95

Rare Earth Magnetic Stir Bar, Octahedral PTFE, 25 x 8mm

This octahedral-shaped, top quality magnetic spin bar features a Rare Earth Neodymium magnetic core, assuring extremely high strength magnetization coupled with almost total resistance to demagnetization. The inert nonstick PTFE coating resists harsh chemicals, is resistant to scratching and high temperatures. NC-14086

$12.95