The Purelab option R 7 provides pure water on demand with a wide range of flow-rates to suit your needs. Applications range from glassware washing and the feeding of ultra-pure water systems to cell culture and media preparation. The purelab option-R provides additional bacteria and inorganic quality for your more critical applications. Delivers market leading microbial performance. In addition to simple sanitization and composite vent filtration, the purelab option-R system is the only fully recirculating type ii system on the market, ensuring high specification water. Purelab option systems are designed to be easy to access whether wall or bench mounted with a convenient dispense tap. Can be used with our wrap-around reservoirs to save space whilst optimizing purity. Make up rate(1): 7.5 liter per hour. Daily output (nominal max)(1): 180 liter per 24 hour day. Output reverse pressure (max)(2): 0.1 bar (1 psi). Bacteria(2): <1 CFU/ml. pH: Effectively neutral. Particles: Optional 0.2?m POU filter. Weight with internal boost pump: 20kg (44lb). Source quality - potable mains water supply. Fouling index - maximum: 10. Total dissolved solids - maximum: 1400�s/cm. Free chlorine - maximum: 0.5 ppm. Heavy metals - maximum: 0.05 ppm. Silica - maximum: 30 ppm. Temperature: 1 - 35 degree C. Flowrate (maximum requirement): 78 liter per hour. Drain requirements (gravity fall with air gap). Maximum during service: 70 liter per hour. Maximum - with internal boost pump: 2.0 bar. Minimum - with internal boost pump: flooded suction. Mains input: 100-240V ac, 50-60Hz. System voltage: 24V DC. Power consumption with boost pump: 80VA. Fuses: 2 x T6.3 Amp. Reservoir level connection: Jack Plug 3.5mm. Noise level: <45dBA. Note: (1): standard conditions are 4 bar inlet pressure, 0 bar back pressure at 15 degrees centigrade, fed with potable water and a clean pre-treatment cartridge. (2) Subject to suitable feedwater.