There are 2 versions. A weighted and non-weighted version. The weighted version is better for thicker materials.
They can be either pushed into the liquid or lowered via a rope or wire. The ball valve on the end lets liquid flow through the bailer until the sampler either rests or starts to be lifted.
|SS-5040W-1000||SteriWare Bailer with weight||950mm||40mm||1000ml||HDPE||24/Box|