... :Grey,blackApproved NSF,WRAS,UL,KTW,W270,ACS,FDAAdvantageAging resistance, high/low temperature resistance, acid/alkali resistance, abrasion resistance etc.SizePowerful design ... capacity supports various customized shower design. CertificationISO9001-2008, NSF, WRAS, UL, TZW, ACS, FDAMaterialAll ...