These syringe filters, also known as «wheel filters» are single use sterile filters  allowing  the elimination of almost all the impurities as well as almost all the micro-organisms (bacteria, fungi) of a solution before its injection.

Caution: these filters do not eliminate viruses.

The 15 mm antibacterial filter is used in the preparation of solutions containing heroin, cocain, buprenorphine and the majority of research chemicals (RC).

The 25 mm antibacterial filter is used in the preparation of large volume solutions, notably of thick or viscous ones.