The PURELAB flex is designed to deliver accuracy, flexibility and ease of use. It provides perfect water purity for analytical and life science applications which require RO Type III water up to ultrapure type I (18.2 MO.cm) water.

Intuitive to use, ergonomic handset design
Clear water purity display for absolute confidence as you dispense
Real-time TOC monitoring for critical analytical applications
Prioritized information shown at all times (system status, TOC, alarm)
Point of use filters for multiple applications

Flexible dispensing by:

Variable flow - drop by drop or up to 2L per minute
AutoVolume dispense with 50mL to 60L and repeat dispensing
Hands free with optional foot pedal
Locked dispense for glassware filling

	PURELAB flex 1	PURELAB flex 1 with purification pack	PURELAB flex 2	PURELAB flex 3	PURELAB flex 4
Daily volume	>10 liters	>10 liters	>10 liters	﹤10 liters	>10 liters
Delivery flow rate – maximum	Up to 2 l/min	Up to 2 l/min	Up to 2 l/min	Up to 2 l/min	Up to 2 l/min
Reverse osmosis make up flow rate	N/A	N/A	N/A	Up to 10 l/hour	N/A
Inorganics (resistivity @25°C)	As per feedwater	18.2 M?-cm	18.2 M?-cm	18.2 M?-cm	18.2 M?-cm
Organics (TOC) – typical	Dependant on feedwater	Dependant on	﹤5ppb 1	﹤5ppb 1	﹤5ppb 1
Direct from internal reservoir	N/A	N/A	N/A	Type III / RO water 2	Type III / RO water 2
Bacteria – typical (when fitted with POU Filter)	﹤1 CFU/10ml	﹤1 CFU/10ml	﹤1 CFU/10ml	﹤1 CFU/10ml	﹤1 CFU/10ml
Bacteria – typical (when fitted with Biofilter)	﹤1 CFU/10ml	﹤1 CFU/10ml	﹤1 CFU/10ml	﹤1 CFU/10ml	﹤1 CFU/10ml
Endotoxin (when fitted with Biofilter)	N/A	﹤0.001 EU/ml	﹤0.001 EU/ml	﹤0.001 EU/ml	﹤0.001 EU/ml
DNase (when fitted with Biofilter)	N/A	N/A	﹤20 pg/ml	﹤20 pg/ml	﹤20 pg/ml
RNase (when fitted with Biofilter)	N/A	N/A	﹤0.002 ng/ml	﹤0.002 ng/ml	﹤0.002 ng/ml
Dimensions (W x D x H Min x H Max)	236x374x900x1020mm	236x374x900x1020mm	236x374x900x1020mm	236x470x900x1020mm	236x470x900x1020mm
Operational weight	10kg (22lb)	10.5kg (23.1lb)	11kg (24.2lb)	23kg (57.3lb)	23kg (57.3lb)
Conductivity	﹤1 µS/cm 3	﹤1 µS/cm 3	﹤1 µS/cm 3	﹤2000 µS/cm 4	﹤30 µS/cm
Hardness	N/A	N/A	N/A	﹤350 ppm as CaCO3	TBC
Free Chlorine	﹤0.05 ppm Cl2	﹤0.05 ppm Cl2	﹤0.05 ppm Cl2	﹤0.5 ppm Cl2	﹤0.05 ppm Cl2
Chloramine	﹤0.05 ppm Cl2	﹤0.05 ppm Cl2	﹤0.05 ppm Cl2	﹤0.2 ppm Cl2	﹤0.05 ppm Cl2
Total Chlorine	﹤0.05 ppm Cl2	﹤0.05 ppm Cl2	﹤0.05 ppm Cl2	﹤0.5 ppm Cl2	﹤0.05 ppm Cl2
Silica	﹤2 ppm	﹤2 ppm	﹤2 ppm	﹤30 ppm SiO2	﹤2 ppm SiO2
Carbon Dioxide Maximum	﹤0.1 ppm	﹤0.1 ppm	﹤0.1 ppm	﹤30 ppm	﹤30 ppm
Fouling index	﹤1	﹤1	﹤1	﹤10	﹤1
Iron / Manganese	N/A	N/A	N/A	﹤0.05 ppm	N/A
Flowrate (requirement at 15°C)	>2 l/min	>2 l/min	>2 l/min	Up to 75 l/hr	Up to 60 l/hr
Drain requirements (gravity fall with air gap)	None required	None required	None required	>90L/hr	>70L/hr
Max feedwater pressue	22psi (1.5bar)	22psi (1.5bar)	22psi (1.5bar)	90psi (6bar)	90psi (6bar)
Min feedwater pressure	Flooded suction	Flooded suction	Flooded suction	30psi (2bar)	1psi (0.07bar)