Corks, Stoppers and Accessories

These black stoppers are made of solid natural rubber that stays pliable over a long period of time. Ideal for use with non-aggressive or concentrated solutions. Low sulfur content. Withstand temperatures from –25 to 70°C (–13 to 158°F). Available in solid, one-hole, and two-hole versions. Each stopper has its size marked in raised figures. All stoppers are 25 mm tall. Sold as one-pound bags. (10 per PK )

These black stoppers are made of solid natural rubber that stays pliable over a long period of time. Ideal for use with non-aggressive or concentrated solutions. Low sulfur content. Withstand temperatures from –25 to 70°C (–13 to 158°F). Available in solid, one-hole, and two-hole versions. Each stopper has its size marked in raised figures. All stoppers are 25 mm tall. Sold as one-pound bags. (10 per PK )

These black stoppers are made of solid natural rubber that stays pliable over a long period of time. Ideal for use with non-aggressive or concentrated solutions. Low sulfur content. Withstand temperatures from –25 to 70°C (–13 to 158°F). Available in solid, one-hole, and two-hole versions. Each stopper has its size marked in raised figures. All stoppers are 25 mm tall. Sold as one-pound bags. (10 per PK )

These black stoppers are made of solid natural rubber that stays pliable over a long period of time. Ideal for use with non-aggressive or concentrated solutions. Low sulfur content. Withstand temperatures from –25 to 70°C (–13 to 158°F). Available in solid, one-hole, and two-hole versions. Each stopper has its size marked in raised figures. All stoppers are 25 mm tall. Sold as one-pound bags. (10 per PK )

These black stoppers are made of solid natural rubber that stays pliable over a long period of time. Ideal for use with non-aggressive or concentrated solutions. Low sulfur content. Withstand temperatures from –25 to 70°C (–13 to 158°F). Available in solid, one-hole, and two-hole versions. Each stopper has its size marked in raised figures. All stoppers are 25 mm tall. Sold as one-pound bags. (10 per PK )

These black stoppers are made of solid natural rubber that stays pliable over a long period of time. Ideal for use with non-aggressive or concentrated solutions. Low sulfur content. Withstand temperatures from –25 to 70°C (–13 to 158°F). Available in solid, one-hole, and two-hole versions. Each stopper has its size marked in raised figures. All stoppers are 25 mm tall. Sold as one-pound bags. (10 per PK )

Blue ASTM neoprene stoppers with 2 hole (5 mm dia): ASTM Size: #15 Bottom 83mm Top 103mm Length 39mm Made from long lasting neoprene rubber, oil resistant, Use up to temps of 250°F / 120°C Pack of 10 (10 per PK )

Blue neoprene stoppers with 1 hole (5 mm dia): Bottom 40mm Top 49mm Length 40mm Made from long lasting neoprene rubber, oil resistant, Use up to temps of 250°F / 120°C Pack of 10 (10 per PK )

Blue neoprene stoppers with 2 holes (5 mm dia): Bottom 27mm Top 31mm Length 32mm Made from long lasting neoprene rubber, oil resistant, Use up to temps of 250°F / 120°C Pack of 10 (10 per PK )

Blue ASTM neoprene stoppers with 2 hole (5 mm dia): ASTM Size: #9 Bottom 37mm Top 45mm Length 25mm Made from long lasting neoprene rubber, oil resistant, Use up to temps of 250°F / 120°C Pack of 10 (10 per PK )

Blue ASTM neoprene stoppers with 2 hole (5 mm dia): ASTM Size: #10.5 Bottom 45mm Top 53mm Length 25mm Made from long lasting neoprene rubber, oil resistant, Use up to temps of 250°F / 120°C Pack of 10 (10 per PK )

Neoprene stoppers can be used in areas where rubber would be attacked by reagents or solvents. Synthetic green neoprene stoppers have good resiliency and shelf-life. They withstand petroleum products and oils as well as most inorganic acids and bases. Sold as one-pound bags (10 per PK )

These black stoppers are made of solid natural rubber that stays pliable over a long period of time. Ideal for use with non-aggressive or concentrated solutions. Low sulfur content. Withstand temperatures from –25 to 70°C (–13 to 158°F). Available in solid, one-hole, and two-hole versions. Each stopper has its size marked in raised figures. All stoppers are 25 mm tall. Sold as one-pound bags. (10 per PK )

These black stoppers are made of solid natural rubber that stays pliable over a long period of time. Ideal for use with non-aggressive or concentrated solutions. Low sulfur content. Withstand temperatures from –25 to 70°C (–13 to 158°F). Available in solid, one-hole, and two-hole versions. Each stopper has its size marked in raised figures. All stoppers are 25 mm tall. Sold as one-pound bags. (10 per PK )

These black stoppers are made of solid natural rubber that stays pliable over a long period of time. Ideal for use with non-aggressive or concentrated solutions. Low sulfur content. Withstand temperatures from –25 to 70°C (–13 to 158°F). Available in solid, one-hole, and two-hole versions. Each stopper has its size marked in raised figures. All stoppers are 25 mm tall. Sold as one-pound bags. (10 per PK )

These grade XXX tapered cork stoppers are an excellent choice for general laboratory use. They are effective for both liquid and solid mediums, and offer light weight, resilience and compressibility. Chemically inert and moisture resistant. Sold as packs (100 per PK )

Solid blue ASTM neoprene stoppers: ASTM Size: #5 Bottom 23mm Top 27mm Length 25mm Made from long lasting neoprene rubber, oil resistant, Use up to temps of 250°F / 120°C Pack of 10 (10 per PK )

Blue neoprene stoppers with 2 holes (5 mm dia): Bottom 38mm Top 42mm Length 40mm Made from long lasting neoprene rubber, oil resistant, Use up to temps of 250°F / 120°C Pack of 10 (10 per PK )

Blue neoprene stoppers with 2 holes (5 mm dia): Bottom 25mm Top 28mm Length 28mm Made from long lasting neoprene rubber, oil resistant, Use up to temps of 250°F / 120°C Pack of 10 (10 per PK )

Blue neoprene stoppers with 1 hole (5 mm dia): Bottom 35mm Top 45mm Length 36mm Made from long lasting neoprene rubber, oil resistant, Use up to temps of 250°F / 120°C Pack of 10 (10 per PK )

Blue ASTM neoprene stoppers with 1 hole (5 mm dia): ASTM Size: #11 Bottom 48mm Top 56mm Length 25mm Made from long lasting neoprene rubber, oil resistant, Use up to temps of 250°F / 120°C Pack of 10 (10 per PK )

Blue neoprene stoppers with 2 holes (5 mm dia): Bottom 23mm Top 26mm Length 28mm Made from long lasting neoprene rubber, oil resistant, Use up to temps of 250°F / 120°C Pack of 10 (10 per PK )

Solid blue neoprene stoppers: Bottom 6mm Top 8mm Length 16mm Made from long lasting neoprene rubber, oil resistant, Use up to temps of 250°F / 120°C Pack of 10 (10 per PK )

Blue ASTM neoprene stoppers with 1 hole (4 mm dia): ASTM Size: #1 Bottom 14mm Top 19mm Length 25mm Made from long lasting neoprene rubber, oil resistant, Use up to temps of 250°F / 120°C Pack of 10 (10 per PK )