Stopper, with 2 hole, 5 mm dia, Size of 4, solid bottom, Colour: Blue, recommended by ASTM std, neoprene rubber, use petroleum products, inorganic acids, oil resistance, suitable for temp up to 250 deg F/120 deg C, Size: 20mm, Top 26mm, Length 25mm
Stopper, with 2 hole, 5 mm dia, Size of 5.5, solid bottom, Colour: Blue, recommended by ASTM std, neoprene rubber, use petroleum products, inorganic acids, oil resistance, suitable for temp up to 250 deg F/120 deg C, Size: 24mm, Top 28mm, Length 25mm
Stopper, with 2 hole, 5 mm dia, Size of 6, solid bottom, Colour: Blue, recommended by ASTM std, neoprene rubber, use petroleum products, inorganic acids, oil resistance, suitable for temp up to 250 deg F/120 deg C, Size: 26mm, Top 32mm, Length 25mm
Stopper, with 2 hole, 5 mm dia, Size of 6.5, solid bottom, Colour: Blue, recommended by ASTM std, neoprene rubber, use petroleum products, inorganic acids, oil resistance, suitable for temp up to 250 deg F/120 deg C, Size: 27mm, Top 34mm, Length 25mm
Stopper, with 2 hole, 5 mm dia, Size of 7, solid bottom, Colour: Blue, recommended by ASTM std, neoprene rubber, use petroleum products, inorganic acids, oil resistance, suitable for temp up to 250 deg F/120 deg C, Size: 30mm, Top 37mm, Length 25mm
Stopper, with 2 hole, 5 mm dia, Size of 7.5, solid bottom, Colour: Blue, recommended by ASTM std, neoprene rubber, use petroleum products, inorganic acids, oil resistance, suitable for temp up to 250 deg F/120 deg C, Size: 31mm, Top 39mm, Length 25mm
Stopper, with 2 hole, 5 mm dia, Size of 8, solid bottom, Colour: Blue, recommended by ASTM std, neoprene rubber, use petroleum products, inorganic acids, oil resistance, suitable for temp up to 250 deg F/120 deg C, Size: 33mm, Top 41mm, Length 25mm
Stopper, with 2 hole, 5 mm dia, Size of 8.5, solid bottom, Colour: Blue, recommended by ASTM std, neoprene rubber, use petroleum products, inorganic acids, oil resistance, suitable for temp up to 250 deg F/120 deg C, Size: 36mm, Top 43mm, Length 25mm
Stopper, with 2 hole, 5 mm dia, Size of 9, solid bottom, Colour: Blue, recommended by ASTM std, neoprene rubber, use petroleum products, inorganic acids, oil resistance, suitable for temp up to 250 deg F/120 deg C, Size: 37mm, Top 45mm, Length 25mm
Stopper, with 2 hole, 5 mm dia, Size of 10, solid bottom, Colour: Blue, recommended by ASTM std, neoprene rubber, use petroleum products, inorganic acids, oil resistance, suitable for temp up to 250 deg F/120 deg C, Size: 42mm, Top 50mm, Length 25mm
Stopper, with 2 hole, 5 mm dia, Size of 10.5, solid bottom, Colour: Blue, recommended by ASTM std, neoprene rubber, use petroleum products, inorganic acids, oil resistance, suitable for temp up to 250 deg F/120 deg C, Size: 45mm, Top 53mm, Length 25mm
Stopper, with 2 hole, 5 mm dia, Size of 11, solid bottom, Colour: Blue, recommended by ASTM std, neoprene rubber, use petroleum products, inorganic acids, oil resistance, suitable for temp up to 250 deg F/120 deg C, Size: 48mm, Top 56mm, Length 25mm