Bel-Art Tubing Sinker for ⁷⁄₃₂ to ¼ in. Tubing (F32903-0102)</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Weighted ends are open in the center</li><li>Feature atapered， barbed fitting that easily inserts into the ID of the tubing</li><li>Sinker keepsthe attached tubing submerged in the liquid</li><li>PTFE Construction means they are autoclavable， chemically inert and will not adhere to container wall</li><li>Use these tube sinkers forefficient emptying of containers by pumps or dispensers; solvent resistant and autoclavable</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/31FO9pOOPTL.jpg' noproxy></br>