Prime+ Round Liner Extra Tight Cartridges Size:5 and a one-piece needle over-mold

and a one-piece needle over-mold for total stability

Available in different Envy Gen2 Cartridge groupings: Flat Chisel Magnum (long taper)

0 compability with the Critical Connect Foot Switch (sold separately)

In other words

providing an ultra stable surface for your Critical Atom or Critical Atom-X

Prime+ Round Liner Extra Tight Cartridges Size:5 and a one-piece needle over-moldIntroducing the enhanced Prime+ Cartridge: redesigned with a stronger membrane for superior stability and increased reliability while maintaining protection from back flow. PRIME demonstrates that you can achieve high quality in an affordable needle cartridge.