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Convex-it Natura Durahesive Flexible White Skin Barrier 1-3/4" (45mm), Pre-cut | CV-413179
Precut Convex Barrier 19mm
The ConvaTec SUR-FIT Natura® Durahesive® Convex-It® skin barrier (manufacturer reference 413179) is a precut convex barrier with a 19mm (3/4") opening, featuring a white acrylic collar. It is offered in the 45mm (1 3/4") coupling size and is used with a compatible two-piece pouch. Sold in a box of 10 units.
Key Features
- Built-in convexity (Convex-It®) — helps manage retracted or flush stomas
- Precut to 19mm (3/4") — no cutting required
- Flexible white acrylic collar
- Coupling size: 45mm (1 3/4")
- Adhesive panel: 11.5cm x 11.5cm (approx. 4.5" x 4.5")
Technical Specifications
| Brand | ConvaTec |
| Product line | SUR-FIT Natura® Durahesive® Convex-It® |
| Manufacturer reference | 413179 |
| SKU Stomo Médical | CV-413179 / CV-413179-1 |
| Type | Convex skin barrier, two-piece, precut |
| Precut opening | 19mm (3/4") |
| Collar | Acrylic (AC), white |
| Coupling size | 45mm (1 3/4") |
| Panel size | 11.5cm x 11.5cm (approx. 4.5" x 4.5") |
| Box quantity | 10 units |
| Sister references (45mm coupling) | 413177 — 13mm, 413178 — 16mm, 413180 — 22mm, 413181 — 25mm, 413182 — 28mm, 413183 — 32mm, 413184 — 35mm |
| 57mm coupling size (12.5cm x 12.5cm panel) | 413185 — 38mm, 413186 — 41mm, 413187 — 45mm, 413188 — 50mm |
Indications for Use
Intended for a person with an ostomy whose stoma measures approximately 19mm in diameter and whose surrounding skin benefits from convexity for a better seal, used with a compatible two-piece pouch with a 45mm coupling.
Frequently Asked Questions
What is manufacturer reference 413179?
It is the SUR-FIT Natura® Durahesive® Convex-It® barrier, precut to 19mm, 45mm coupling, sold in a box of 10.
Why choose a precut barrier instead of a cut-to-fit one?
It removes the cutting step for stomas of a stable, well-measured size, saving time and ensuring consistent precision with every application.
What other precut sizes are available with this same coupling (45mm)?
13mm, 16mm, 22mm, 25mm, 28mm, 32mm, and 35mm.
Is a larger coupling size available?
Yes, a 57mm coupling is available with precut openings from 38mm to 50mm.
Is this sold individually?
It is sold in a box of 10 units (SKU CV-413179); a single-unit option is also available (SKU CV-413179-1).


