Excellent for sampling from tank cars, tank trucks, and barges, these samplers are well suited for sodium hydroxide, potassium hydroxide, hydrochloric acid, acetic acid, formaldehyde, sulfuric acid, etc. A 500 cc (16 oz) polyethylene bottle is screwed onto a 10 cm (4") long, 38mm (1-1/2 ") diameter bar which has a slot for fluid entry. The upper end of the bar is threaded to accept the handle.