Silicone Stopper, Size #5
Fits 125mL Pyrex Erlenmeyer. Silicone stoppers are particularly useful due to their inert and nonreactive nature. Heat to 450°. Chemical resistant. NC-14662
Rubber Stopper, Size #2
Fits 20X150 Test Tubes. All of our black rubber stoppers are laboratory grade. Available as solid or 1-hole. NC-0957
$0.65
Silicone Stopper, Size #6, pk/12
Fits 250mL Pyrex Erlenmeyer. Silicone stoppers are particularly useful due to their inert and nonreactive nature. Heat to 450°. Chemical resistant. NC-14663. Sold in a pack of 12 stoppers.
Rubber Stopper, Size #3
All of our black rubber stoppers are laboratory grade. Available as solid or 1-hole. NC-0958
$0.80
Silicone Stopper, Size #7
Fits 500mL Pyrex Erlenmeyer. Silicone stoppers are particularly useful due to their inert and nonreactive nature. Heat to 450°. Chemical resistant. NC-14664
Rubber Stopper, Size #4
Fits 25X150 and 25X200 Test Tubes and 24/40 ground glass openings. All of our black rubber stoppers are laboratory grade. Available as solid or 1-hole. Hole diameter is 5mm. NC-0959
$0.80
Rubber Stopper, Size #5
Fits 125ml Erlenmeyer Flasks. All of our black rubber stoppers are laboratory grade. Available as solid or 1-hole. NC-0960
$0.90
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
$1.00
Rubber Stopper, Size #6.5
All of our black rubber stoppers are laboratory grade. Available as solid or 1-hole. NC-0970
$1.05
Rubber Stopper, Size #7
Fits 500ml Pyrex Erlenmeyer Flask; 500ml Pyrex Filter Flask; and 250ml Bomex Filter Flask. All of our black rubber stoppers are laboratory grade. Available as solid or 1-hole. NC-0962
$1.15
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
Rubber Stopper, Size #9
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
$1.90