Vacation Notice: We will be on break from July 10 through July 18, 2026. No orders will be processed during this time away. We will return for regular business on Monday July 20th. Thank you!
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
Fits 1000ml Bomex Erlenmeyer Flask; 1000ml Pyrex Erlenmeyer Flask. All of our black rubber stoppers are laboratory grade. Available as solid or 1-hole. NC-0964
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
All of our black rubber stoppers are laboratory grade. Available as solid or 1-hole. NC-0953
All of our black rubber stoppers are laboratory grade. Available as solid or 1-hole. NC-0954
