WISP™ Style Snap Seal™ Inserts (15x45mm)

Inserts are available preassembled with a polymer bottom spring or patented Top Spring™. The polymer spring acts as a shock absorber that protects against breakage if the needle bottoms out. The conical design permits complete sample removal. 

Inserts are available preassembled with a polymer bottom spring or patented Top Spring™. The polymer spring acts as a shock absorber that protects against breakage if the needle bottoms out. The conical design permits complete sample removal. 

Flat Bottom Inserts are an economical alternative to the conical limited volume inserts.  Flat Bottom Inserts are available silanized or precleaned.