Stopper, with 1 hole, 4 mm dia, solid bottom, Colour: Blue, recommended by ASTM std, neoprene rubber, use with petroleum products, oils, inorganic acids, oil resistance, suitable for temp up to 250 deg F/120 deg C, Size: 13mm, Top 17mm, Length 25mm
Stopper, size of 1, solid bottom, Colour: Blue, recommended by ASTM std, from long lasting neoprene rubber, use with petroleum products, minerals, oils, inorganic acids and bases, suitable for temp up to 250 deg F/120 deg C, Size: 14mm, Top 19mm, Length 25mm