A customer from Holland has used to buy a counterfeit product of S&A brand chiller, but unfortunately his laser tube has broken because of this water chiller error. The customer reflected the cooling capacity became much less efficient after some time, and the cooling water flows through the laser tube became a blacker and blacker. Therefore, to guarantee your benefit, please purchasing S&A chiller directly from S&A company. Know more about S&A chiller: http://www.teyuchiller.com/product/ CONTACT S&A TEL:+86-20-89301885 FAX:+86-20-84309967 SKYPE: teyuchiller Email:marketing@teyu.com.cn Website: http://www.teyuchiller.com