Reduce sample contamination during aseptic sampling with QMI membrane systems. This 7-port silicone aseptic sampling membrane comes with cap and is used with a number of SAFE-SEPTUM sampling products.Requires heavy gauge needles of 16 or 18 gauge. The high grade sampling membrane (109-3027) withstands temperatures up to 190°F at 150 psi for 200 hours. The high heat membranes (#109-3029) withstand temperatures up to 280°F. Made in the USA. FDA approved.