Home About Us Resources Products Services Contact Us We recommend this for the QS4 system, especially if the system will not be placed in a fume hood or other enclosure. The enclosure reduces noise to safe levels, and provides a first line of defense against airborne particulate. The dimensions of the enclosure are 23"x14.5"x12”. QSENC-432B$695.00 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”.