Avanos MIC Gastrostomy Feeding Tube — 0112 Series

By Avanos Medical  |  Item# Format: 0112-[FR]  |  FSA/HSA Eligible  |  Sold Each

Standard Gastrostomy Tube — External Shaft & Skin-Level Access Port  |  3-Port Design (Feeding + Medication + Balloon)  |  International Color-Coded Balloon Port  |  Universal Feeding Connector  |  External Retention Ring  |  Silicone Retention Balloon  |  14FR–24FR  |  Non-ENFit  |  FDA Approved & CE Marked

Not the low-profile button: The Avanos MIC Gastrostomy Tube (0112 series) is a standard G-tube with an external shaft — distinct from the MIC-KEY G (0120 series) low-profile skin-level button. If your prescriber has specified a low-profile or "button" G-tube, see the MIC-KEY G Low Profile Gastrostomy Feeding Tube.

The Avanos MIC Gastrostomy Feeding Tube is Avanos's standard-format gastrostomy tube for long-term enteral nutrition, medication delivery, and gastric decompression in patients who require a conventional shaft-style tube rather than a low-profile button. The MIC G tube sits at the skin surface via an external retention ring that presses against the abdominal wall, with the tube body accessible from outside the body for connection to feeding sets. The three-port design provides a dedicated universal feeding connector compatible with most enteral feeding pumps and syringes, a separate medication port for independent medication delivery without interrupting feeding access, and an internationally color-coded balloon port with luer-slip connection for efficient one-handed balloon inflation and deflation. The silicone internal retention balloon at 7–10mL (18–24FR) or low-volume (LV, for 14–16FR) is specifically designed to extend beyond the tapered distal tip at the recommended fill volume — pushing the retention balloon away from the tip and reducing the risk of the tip pressing against the gastric wall to cause ulceration or erosion. Radiopaque stripe for X-ray visualization. Gamma sterilized. Non-ENFit connector. FDA approved. CE marked. 6 French sizes: 14FR–24FR. FSA/HSA eligible. By Avanos Medical.

Available Item Numbers

Questions about which French size is correct? Call 1-866-218-0902 — confirm the French size from your prescriber's order before ordering.

Three-Port Design — At a Glance

Key Features

• Standard gastrostomy tube format — external shaft and skin-level access — the MIC G is a conventional-style gastrostomy tube: it passes from outside the body, through the abdominal wall, into the stomach; the external portion of the tube extends from the skin surface as a shaft that can be connected to feeding extension sets and accessed for medication delivery; an external retention ring (bolster) rests against the skin surface to hold the tube in position at the correct depth; the external shaft design allows the tube to be accessed and managed at the skin surface without any internal engagement mechanism, making it appropriate for patients whose clinical team or home care setting uses standard gastrostomy protocols
• Three-port design — feeding, medication, and balloon separately — having a dedicated medication port alongside the feeding port allows medication to be administered without interrupting a continuous feed, without disconnecting the feeding set, and without contaminating the feeding connector with medication residue that can accumulate and cause blockage; the separated ports support the clinical workflow efficiency that matters most in intensive tube feeding protocols and in home care settings where caregivers manage both feeds and medications independently
• International color-coded balloon port — luer slip one-handed operation — the balloon inflation and deflation port uses the international color convention (the balloon port is distinctively colored to prevent misidentification with the feeding or medication ports) and a luer-slip connector that allows syringe attachment and removal with one hand; this is relevant for home caregivers who manage tube balloon checks without clinical assistance and need a quick, reliable, single-hand operation for balloon maintenance
• Balloon extends beyond tip at recommended fill volume — the Avanos MIC G is specifically designed so that when the balloon is inflated to its recommended volume (7–10mL for 18–24FR), the balloon expands beyond the tube's tapered distal tip; this design pushes the retention balloon away from the tube tip so the tip does not press directly against the gastric mucosa; continuous contact between the tube tip and gastric wall is a documented cause of pressure-related gastric ulceration and erosion at the tube site; the recessed tip design at fill volume is a specific patient safety feature
• Universal feeding connector — compatible with most enteral feeding systems — the non-ENFit universal connector on the MIC G is compatible with most standard enteral feeding pump sets, extension tubing, and enteral syringes; for clinical settings that have standardized on ENFit-compliant enteral feeding systems, Avanos recommends using the MIC G tube (a separate product designed for ENFit compatibility) rather than this 0112 series
• External retention ring — the external bolster holds the tube at the correct skin-to-gastric-wall depth; the retention ring is adjusted at placement and checked at each tube change to ensure there is neither tension (pulling the ring tight against the skin, causing pressure injury) nor excessive slack (allowing the tube to migrate inward)
• Medical-grade silicone — high clarity and flexibility — the tube body is clear medical-grade silicone, allowing visual inspection of formula flow and residual content through the tube wall; silicone flexibility makes the tube comfortable for long-term implantation
• Low Volume (LV) designation for 14FR and 16FR — smaller French sizes are used in smaller or pediatric patients; the LV configuration uses a smaller balloon fill volume appropriate for the anatomy of the smaller patient populations in which 14FR and 16FR tubes are typically used; always confirm the correct balloon fill volume from the prescribing clinician before inflating the balloon at tube changes
• Radiopaque stripe | Gamma sterilized | FDA approved | CE marked | Non-ENFit | FSA/HSA eligible | By Avanos Medical

Clinical FAQs

What is the difference between the Avanos MIC G (0112 series) and the MIC-KEY G (0120 series)?

Both the MIC G and the MIC-KEY G are Avanos Medical gastrostomy feeding tubes made from the same medical-grade silicone — but they are fundamentally different product formats serving different clinical and patient populations. The MIC G (0112 series) is a standard gastrostomy tube: it has an external shaft that extends from the abdominal skin surface as a tube body, with ports accessible from outside the body without any engagement mechanism; it is held at the skin surface by an external retention ring; it connects to standard enteral feeding sets through a universal (non-ENFit) connector. This is the conventional tube format used in most initial gastrostomy placements and in patients who are managed primarily in clinical or long-term care settings. The MIC-KEY G (0120 series) is a low-profile gastrostomy button: no external shaft protrudes from the body; the tube sits flush at the skin surface; access for feeding requires a separate MIC-KEY extension set that engages the SECUR-LOK locking connector; the tube is held by an internal balloon only (no external retention ring); it is preferred for active patients, pediatric patients, and anyone for whom concealment and lifestyle normalization are priorities. The choice between the two formats is a clinical decision made by the prescribing physician and gastroenterology or nutrition team based on the patient's activity level, care setting, patient preference, and initial tube placement. Patients transitioning from an initial PEG tube (often placed at the time of endoscopic gastrostomy) are commonly converted to either the MIC G standard tube or the MIC-KEY low-profile button at the first tube change (typically 8–12 weeks after initial placement). Call us at 1-866-218-0902 if you are unsure whether your prescriber specified a standard or low-profile tube — confirming before ordering prevents the significant inconvenience of receiving the wrong tube format.

What does "LV" (Low Volume) mean for the 14FR and 16FR sizes, and how does it affect balloon management?

LV designates "Low Volume" — the 14FR and 16FR MIC G tubes use a smaller internal retention balloon that is inflated with less sterile water than the standard 7–10mL volume used in the 18FR–24FR sizes. Smaller French sizes are typically used in smaller patients — children, adolescents, and smaller adults — where the gastric anatomy and tube access site are proportionally smaller. A standard 7–10mL balloon in a smaller patient's stomach would be disproportionately large relative to the gastric wall and tube site, creating unnecessary pressure against the mucosa. The LV configuration's smaller balloon is scaled appropriately for the typical patient receiving a 14FR or 16FR tube. In practical balloon management, the specific fill volume for the LV balloon is determined by the prescribing clinician and noted in the care plan; caregivers performing monthly balloon checks and water replacement should use only the prescribed volume — never overfill the balloon beyond the manufacturer's specified maximum. Using the incorrect balloon fill volume in either direction (too much water or too little water) is one of the most common G-tube management errors and can cause gastric mucosal injury (overfill) or accidental tube dislodgement (underfill). Confirm the correct balloon fill volume from the clinical care plan before each balloon maintenance event.

What does "Non-ENFit" mean and why does it matter for feeding set selection?

ENFit is an international connector standard (ISO 80369-3) developed specifically for enteral feeding to prevent the misconnection of enteral feeding sets to intravenous or other non-enteral lines — a type of error that has caused patient deaths. ENFit connectors use a unique geometry that is physically incompatible with IV, respiratory, or other medical line connectors, eliminating the misconnection pathway. ENFit implementation in the United States has been ongoing since 2015 in institutional settings. The Avanos MIC G (0112 series) uses a universal (non-ENFit) connector on the feeding port — a standard connector that has been in use for decades and is compatible with the vast majority of currently deployed enteral feeding pump sets, extension tubing, and syringes. If your facility, home care program, or feeding pump supply uses standard (non-ENFit) enteral feeding sets, the 0112 series MIC G is the correct choice. If your setting has transitioned to ENFit-compliant feeding sets — either because your institution has adopted ENFit as a standard or because your feeding pump manufacturer requires ENFit tubing — you should discuss with your prescribing clinician whether the ENFit-compatible version of the Avanos MIC G is indicated, as ENFit feeding sets are not physically compatible with the non-ENFit universal connector on the 0112 series tube. Call us at 1-866-218-0902 with questions about feeding set compatibility with the 0112 series tube.

Questions about the Avanos MIC G tube, size selection, or enteral feeding accessories? Call our product specialists: 1-866-218-0902  |  Mon–Fri 9am–5pm, Sat 9am–3pm EST