MIC-Key Low-Profile Feeding Tubes & Extension Sets

For anyone managing long-term enteral nutrition, the MIC-Key low-profile gastrostomy button sits nearly flush against the skin — discreet under clothing, easy to conceal, and far less prone to snagging than a traditional dangling tube. That low profile is exactly why families, caregivers, and clinicians rely on it for children and active adults who tube-feed but still want to move, swim, and go about the day. This collection brings together Avanos MIC-Key and MIC gastrostomy tubes along with the extension sets that connect them for feeding.

Getting the French size and stoma length right

A MIC-Key button is measured two ways, and both matter for a proper fit. The French (Fr.) size — 14, 16, 18, or 20 Fr in this collection — sets the diameter of the tube, while the stoma length (shown in centimeters, from 1.5 cm up to 3.0 cm) must match the depth of your stoma tract. A button that's too short pulls tight and irritates; too long, and it can rock and leak. Options like the Avanos MIC-Key 14 Fr., 1.5 cm Kit or the 18 Fr., 3.0 cm ENFit tube let you match the exact measurement your care team specifies. Each tube features a silicone construction, a balloon retention design for secure placement, and a recessed distal tip.

ENFit compatibility and the right extension set

The button itself doesn't feed — you attach an extension set for each session. Bolus sets like the MIC-Key Bolus Extension Set with ENFit Connectors pair with a syringe for gravity or push feeds, while the SECUR-LOK straight connector sets lock in place to prevent accidental disconnection. Note that newer MIC-Key tubes use ENFit connectors, the international standard designed to prevent misconnection with IV or other lines; confirm your button and extension set share the same connector type before ordering.

Full kits arrive with lubricant, extension tubing, and syringes for a complete tube change. Explore related enteral options in our MIC and MIC-Peg collections.

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MIC-Key Low-Profile Feeding Tubes & Extension Sets