Home About Us Resources Products Services Contact Us The cup horn turns the QS4 system into a high intensity ultrasonic water bath. Cooling water can either be static, or can be flowed through the cup during sonication of your samples. Samples can be placed in sealed tubes or vials, and immersed in the bath. This is useful for samples that are temperature sensitive. The bath construction is acrylic, and has a 5.5” inner diameter. Within is a 2.5” diameter titanium probe tip. QS4-CH$1,650.00 Customers in State of Indiana: 7% sales tax must be charged unless all information in each section of ST-105 is fully completed by the purchaser. If you are exempt from sales tax, please fill out Form ST-105 at or before you place an order by clicking Indiana Department of Revenue General Sales Tax Exemption Certificate Please fax the form to (781) 609 2899 Thanks! updated: 08/10/2011 NANOLABTM as a trade mark was registered with “Registered, U.S. Patent and Trademark Office”.