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 )

Blue ASTM neoprene stoppers with 2 hole (5 mm dia): 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 )

Silicone stoppers are particularly useful due to their inert and nonreactive nature. It will not impair the growth of tissue cultures and resistant to most chemical acids and solvents. (12 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 )

Blue ASTM neoprene stoppers with 2 hole (5 mm dia): ASTM Size: #6.5 Bottom 27mm Top 34mm 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 )

Stopper Rubber, Solid, bottom 25mm, top 28mm, length 28mm, pk of 10 (10 per PK )

Cork Stopper - Bark, size no. 9, bottom 18mm, top 24mm, length 29mm, pk of 10 (10 per PK )

No. 8 Silicone Stopper (1 per EA )

Blue ASTM neoprene stoppers with 2 hole (5 mm dia): ASTM Size: #12 Bottom 54mm Top 64mm 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 )

Silicon Rubber Cork-Translucent, bottom 9mm, top 11.5mm, length 20mm (1 per EA )

Solid blue ASTM neoprene stoppers: ASTM Size: #2 Bottom 16mm Top 20mm 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 )

Cork Stopper - Bark, bottom 13mm, top 19mm, length 24mm, pk of 10 (10 per PK )

Stopper Rubber - One hole, pk of 50 (50 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 )

Stopper-Polypropylene 12/21, pk of 10 (10 per PK )

Stopper Rubber, 1 hole , bottom 27mm, top 31mm, length 32mm, pk of 10 (10 per PK )

Stopper Rubber, Solid, bottom 21mm, top 24mm, length 28mm, pk of 10 (10 per PK )

Stopper Rubber, Solid, bottom 15mm, top 18mm, length 24mm, pk of 10 (10 per PK )

Silicone stoppers are particularly useful due to their inert and nonreactive nature. It will not impair the growth of tissue cultures and resistant to most chemical acids and solvents. (12 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 )

Solid blue ASTM neoprene stoppers: ASTM Size: #4 Bottom 20mm Top 26mm 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 )