Hyper Filter Tips top/Standard Filter Tips top
Watson's "Hyper-Filter tip" adopts a special hydrophobic porous filter to prevent overflow caused by human errors.
Hyper-Filter has excellent chemical resistance, thus the sample which has been erroneously over-aspirated and touched the filter can be re-used in safety.
In a comparison of Watson's Hyper-Filter Tips with other brands(when aspirating 60 µL with 20 µL filter tip), Watson brand Hyper-Filter tip completely prevents the sample overflow due to our highly dense filter in one minute after the solution has been absorbed.
The sample can be collected after aspirating the sample right up to the filter and dispensing.
The particles of filter do not swell with the solution and block the filter.
Hyper-Filter can stop the liquid firmly but don't close the hole completely when it comes into contact with the sample excessively aspirated.
Hyper-Filter is dense enough to prevent overflow, however maintains the holes in the filter.
Conventional Hyper Filter particles, once the sample touched the filter, expand and block in the holes of the filter to prevent overflow.
These samples cannot be collected once dispensed.
Small volume Hyper Filter Tips are available as both short and long type.
The overall length of 100 µL and 200 µL normal type tips is 53 mm. The 200 µL long type tip (graduated) is 89 mm.
Watson offers everything from short to long type tips.
Long type tips are 89 mm (overall length) and are long enough for use in test tubes.
Extra long type tips with an overall length of 130 mm will reach the bottom of a 15 mL and 50 mL centrifuge tube. No risk of contamination.
Large volume macro filter tips.
Hyper Filter Tips top/Standard Filter Tips top
The body and lid, made of polycarbonate (PC), does not lose its shape over time use. It can also be autoclaved repetitively.
Note: Repeated autoclaving may cause rack damaged.
The body and lid, made of Polypropylene (PP) is lightweight, durable, and highly resistant to chemicals and heat. Because of its inexpensive cost compared with System Rack (PC), this System Rack (PP) can be disposed as one time use if used with non-sterilized long tip, or can be reused even after autoclaving if tips are manually refilled.
Note: The rack made of PP shrinks slightly after autoclaving, consequently refill plate cannot be used.
This mark shows RNase/DNase/Human-DNA free. Products with this mark are manufactured in the cleanroom under our high quality control, and inspected to meet our strict quality standards. RNase/DNase-free guarantees can be issued for each lot upon your request.
One-touch replacement for the System Rack. The paper cover can be recycled.
Note: Use a PC (polycarbonate) rack when refilling tips.
Remove the old plate.
Place the new plate. Remove paper skirt.
Refilling tips is complete.