UV disinfectionJMFS Series Potable and high purity water applications 304 Stainless Steel,Website: , electropolished and passivated inside and out, 316 Stainless Steel is optional. Dual heads may be removed and rotated for versatility during installation Retainer Cap for effortless lamp change Fused quartz sleeve insure optimum lamp output at normal potable water temperature Removable flanged head for easy disassembly for concerned models . lamp operation indicator, elapsed time indicator. Product CodeFLOW RATECONNECTION BSPQuartz Sleeve Length (mm)UV LAMP NO.JMFS-22GPM/450LPH1/2" BSP400T514JMFS-33GPM/680LPH1/2" BSP400T515JMFS-66GPM/1360LPH3/4" BSP530T521JMFS-88GPM/1814LPH3/4" BSP680T529JMFS-1212GPM/2720LPH1" BSP910T540JMFS-1515GPM/3400LPH1" BSP910T565JMFS-2020GPM/4536LPH11/2" BSP910T565JMFS-2424GPM/5443LPH11/2"BSP910T680JMFS-3535GPM/7938LPH2"BSP1205T6100JMFS-4545GPM/10200LPH2"BSP1205T6120JMFS-7070GPM/15876LPH3"BSP1630T6150