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Ostomy Barriers: 1-Piece vs 2-Piece Ostomy Systems

Ostomy wafers adhere to the skin around your stoma and connect to an ostomy bag. Ostomy wafers are also called baseplates, barriers, and flanges. The skin barrier is designed to protect delicate stomal skin from caustic output. These are two types of ostomy systems: When ostomy wafers are pre-attached to the bag and cannot come apart, it's considered a 1-piece ostomy system. While 2-piece systems are separate and connected to one another by the user. If you use a 1-piece system, both the wafer and bag must be disposed of when the bag is full. With a 2-piece system, you can remove the bag from the flange and throw it away, leaving the wafer attached to your body.

If you choose to use 2 piece ostomy bags, keep in mind that flanges will only connect with an ostomy pouch system from the same brand’s product line. You cannot use a flange from one brand and connect it to a pouch from a different brand. This also applies to different product lines manufactured by the same company. For instance, you cannot use a Coloplast Sensura flange with a Coloplast Assura pouch. Brands often use colors to represent stomal opening sizes, making it easier to match up the wafer with the corresponding pouch. This is another benefit of staying within the same product line once you find the wafer size that works best with your stoma.

Customizable Wafers

Cut to fit wafers allow you to customize the size and shape of the opening in the barrier. They are beneficial for new ostomates, because after surgery the stoma will change size and shape. These are also helpful for people who are in between sizes or don’t have a perfectly round stoma. Pre-cut wafers or flanges have an existing hole cut out, preventing you from having to cut the opening yourself. For those with established and rounder stomas, using a pre-cut flange can save you the time of fitting the wafer once you know which flange size works best for you.

Ostomy Seals

It is rare that an ostomy barrier will fit perfectly around your stoma. Usually there is a small gap between the stoma and the hole of the barrier. Leaving open gaps can cause stoma output to leak under the wafer, which could damage stomal skin. Ostomy seals are placed underneath your wafer to fill in the gaps between the ostomy wafer and your stoma. These barrier rings are made from a flexible material and can be fitted to the size and shape of your stoma. We also carry moldable flanges, which have a barrier ring-like material already built into the flange.

Skin Protection

Skin prep wipes and ostomy barrier sprays can also protect your stoma from redness and irritation or help treat damaged skin. Barrier sprays and wipes form a thin layer on the skin that shields it from moisture and output. Some ostomates apply stoma powder to the skin and follow up with skin prep product afterward. This process, known as crusting, protects the stomal skin and helps the wafer adhere to the body.

Buy Ostomy Wafers Online

Order ostomy products and supplies online that can be quickly shipped to your door. Shop our large collection of ostomy wafers now.

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Picture of Coloplast SenSura Mio Click - 2-Piece Ostomy Barrier (Pre-cut)

Coloplast SenSura Mio Click - 2-Piece Ostomy Barrier (Pre-cut)

  • Elastic barrier fits easily and conforms to the movement of the body
  • Full circle filter to reduce ballooning and adds comfort
  • No belt needed
From: $29.95
Picture of Coloplast SenSura Flex - Standard Wear Barrier (Cut to Fit - Convex Light)

Coloplast SenSura Flex - Standard Wear Barrier (Cut to Fit - Convex Light)

  • Latex free
  • Includes belt tabs
  • Cut-to-fit wafer: 5/8"-1 5/16"
  • Convex light standard wear barrier
From: $35.95
Picture of Coloplast SenSura Mio Click - Convex Light 2-Piece Ostomy Barrier (Pre-cut)

Coloplast SenSura Mio Click - Convex Light 2-Piece Ostomy Barrier (Pre-cut)

  • Helps stomas protrude correctly
  • Evens out divots, creases, and folds
  • Ideal for shallow inward areas around the stoma
  • Elastic barrier fits easily and conforms to the movement of the body
From: $41.45
Picture of Coloplast SenSura Flex - Xpro Extended Wear Barrier (Cut to Fit)

Coloplast SenSura Flex - Xpro Extended Wear Barrier (Cut to Fit)

  • Ideal for high output urostomies
  • Convex Light barrier for flushed, skinfold, or retracted stomas
  • Double layer protection, strong protective layer and skin friendly layer
From: $43.95
Picture of Coloplast SenSura Mio Flex - 2-Piece Convex Ostomy Barrier (Convex Light - Pre-cut)

Coloplast SenSura Mio Flex - 2-Piece Convex Ostomy Barrier (Convex Light - Pre-cut)

  • Helps stomas that need to protrude
  • Evens out divots, creases, and folds
  • For use where output is undermining the appliance
  • Convex light curve, fills shallow areas around stoma
From: $41.45
Picture of Coloplast SenSura Flex Xpro - Extended Wear Barrier (Cut to Fit - Flat)

Coloplast SenSura Flex Xpro - Extended Wear Barrier (Cut to Fit - Flat)

  • Flat extended wear barrier
  • Cut-to-fit 3/8"-1/5/16" wafer
  • Double layer protection, strong protective layer, and skin friendly layer
From: $61.95
Picture of Coloplast SenSura Mio Click - 2-Piece Ostomy Barrier (Convex Deep - Cut to Fit)

Coloplast SenSura Mio Click - 2-Piece Ostomy Barrier (Convex Deep - Cut to Fit)

  • Ideal for stomas that need a lot of protrusion help
  • Evens out divots, creases, and folds
  • A deep curve, helps fill deep inward areas around the stoma
  • Box of 5
From: $41.45
Picture of Coloplast SenSura Mio Flex - 2-Piece Ostomy Barrier (Pre-cut)

Coloplast SenSura Mio Flex - 2-Piece Ostomy Barrier (Pre-cut)

  • Elastic adhesive fits securely to real body folds and will not slide off
  • 2-piece wafer makes changing much easier on a daily basis
  • No belt needed
From: $29.95
Picture of ConvaTec SUR-FIT Natura - Durahesive CONVEX-IT Skin Barrier

ConvaTec SUR-FIT Natura - Durahesive CONVEX-IT Skin Barrier

  • Flexible white fabric collar
  • Audible snap signals secure connection between pouch and flange
  • Ideal for those with mostly liquid output
  • Designed for recessed, retracted, or flush stomas
  • Box of 10
From: $109.45
Picture of Coloplast SenSura Mio Click - 2-Piece Ostomy Barrier (Convex Light - Cut to Fit)

Coloplast SenSura Mio Click - 2-Piece Ostomy Barrier (Convex Light - Cut to Fit)

  • Helps stomas that need to protrude
  • Evens out divots, creases, and folds
  • A light curve, helps fill shallow inward areas around the stoma
  • Box of 5
From: $41.45
Picture of ConvaTec Esteem Synergy - Stomahesive Flexible Skin Barrier with Flange (Pre-cut)

ConvaTec Esteem Synergy - Stomahesive Flexible Skin Barrier with Flange (Pre-cut)

  • Ostomy supplies that protect from stomal output
  • Precise alignment is not required with the "landing zone"
  • Vesatility of a two-piece system with the flexibility of a one-piece system
From: $59.95
Picture of Coloplast SenSura Mio Click - 2-Piece Ostomy Barrier (Cut to Fit)

Coloplast SenSura Mio Click - 2-Piece Ostomy Barrier (Cut to Fit)

  • Elastic adhesive to secure fit to real body folds
  • Wafer is separate from the pouch, makes changing easier
  • Audible click for secure closure and added comfort
  • Box of 5
From: $29.95
Picture of Convatec Esteem Synergy - Stomahesive Moldable Skin Barriers

Convatec Esteem Synergy - Stomahesive Moldable Skin Barriers

  • Skin barriers utilize Convatec's Adhesive Coupling Technology to connect the pouch to the skin barrier
  • Moldable skin barriers hug the contours of the stoma for a personalized fit
  • Skin barriers feature a flexible foam ring to that securely connects to the skin barrier
From: $57.45
Picture of Coloplast SenSura Mio Flex - 2-Piece Convex Ostomy Barrier (Convex Light - Cut to Fit)

Coloplast SenSura Mio Flex - 2-Piece Convex Ostomy Barrier (Convex Light - Cut to Fit)

  • Helps stomas protrude correctly
  • Evens out divots, creases, and folds
  • For use where output is undermining the appliance
  • A light curve, helps fill shallow inward areas around the stoma
  • Box of 5
From: $41.45
Picture of ConvaTec SUR-FIT Natura - Durahesive Convex Moldable Skin Barrier

ConvaTec SUR-FIT Natura - Durahesive Convex Moldable Skin Barrier

  • Locks into place with a snap
  • Easy to fit, apply, and remove
  • No cutting or measuring required
  • Ostomy supplies that can be used in water
  • Box of 10
From: $111.45
Picture of Coloplast SenSura Mio Flex - 2-Piece Ostomy Barrier (Cut to Fit)

Coloplast SenSura Mio Flex - 2-Piece Ostomy Barrier (Cut to Fit)

  • Elastic adhesive to secure fit to real body folds
  • Wafer is separate from the pouch, makes changing easier
  • No belt needed to wear this cut to fit ostomy wafer
From: $29.95
Picture of ConvaTec SUR-FIT Natura - Stomahesive Flexible Skin Barrier w/Flange (Pre-cut)

ConvaTec SUR-FIT Natura - Stomahesive Flexible Skin Barrier w/Flange (Pre-cut)

  • Coupling ring snaps into place
  • Holds firmly to moist or dry skin
  • Reliable, comfortable, and secure
  • Box of 10
From: $60.95
Picture of ConvaTec Esteem Synergy - Durahesive Moldable Convex Skin Barriers

ConvaTec Esteem Synergy - Durahesive Moldable Convex Skin Barriers

  • Moldable convex skin barrier that hugs the stoma for a secure fit
  • Custom fit every time
  • No need for plastic rings
From: $109.45
Picture of ConvaTec Little Ones - Flexible Skin Barrier with Flange (Cut to Fit)

ConvaTec Little Ones - Flexible Skin Barrier with Flange (Cut to Fit)

  • Sold by the Box of 5
  • Ultra thin tape collar for greater flexibility
  • Gentle on the skin, resistant to stoma output
  • Audible click confirms secure connection to pouch
  • SKU: 401925 = 32mm (1¼") flange
  • SKU: 401926 = 45mm (1¾") flange
From: $26.95
Picture of ConvaTec SUR-FIT Natura - Stomahesive Moldable Skin Barrier w/Flange (Acrylic Collar)

ConvaTec SUR-FIT Natura - Stomahesive Moldable Skin Barrier w/Flange (Acrylic Collar)

  • Box of 10
  • 5" x 5" moldable skin barrier
  • Easy to fit, apply, and remove
  • Minimize leaks and protects skin
  • No cutting or measuring required
  • Acrylic tape collar, stays on even with moisture
From: $58.45
Picture of ConvaTec SUR-FIT Natura - Durahesive Flexible Skin Barrier with Flange (Cut to Fit)

ConvaTec SUR-FIT Natura - Durahesive Flexible Skin Barrier with Flange (Cut to Fit)

  • Can be used while bathing
  • Locks into place with a snap
  • Moldable ostomy supply that "hugs" the stoma
  • Box of 10
From: $79.45
Picture of ConvaTec SUR-FIT Natura - Stomahesive Moldable Skin Barrier w/Flange (Hydrocolloidal Collar)

ConvaTec SUR-FIT Natura - Stomahesive Moldable Skin Barrier w/Flange (Hydrocolloidal Collar)

  • Easy to fit, apply, and remove
  • Minimize leaks and protects skin
  • No cutting or measuring required
  • Box of 10
From: $58.45
Picture of ConvaTec Esteem Synergy - Stomahesive Skin Barrier with Landing Zone Flange (Cut to Fit)

ConvaTec Esteem Synergy - Stomahesive Skin Barrier with Landing Zone Flange (Cut to Fit)

  • Protects skin from stomal output
  • Precise alignment is not required
  • Slim profile
  • Strong, clear adhesive
From: $57.45
Picture of Cymed MicroSkin - Adhesive Ostomy Barrier/Flange with MicroDerm Washer (Pre-cut)

Cymed MicroSkin - Adhesive Ostomy Barrier/Flange with MicroDerm Washer (Pre-cut)

  • Waterproof
  • No belts, tapes, or glues needed
  • Universal flange works with most Cymed ostomy two-piece pouches
From: $38.45
Picture of ConvaTec SUR-FIT Natura - Stomahesive Flexible Skin Barrier with Flange (Cut to Fit)

ConvaTec SUR-FIT Natura - Stomahesive Flexible Skin Barrier with Flange (Cut to Fit)

ConvaTec SUR-FIT Natura - Stomahesive Flexible Skin Barrier with Flange (Cut to Fit) Features:

  • Secure Fit: The ConvaTec SUR-FIT Natura skin barrier ensures a secure and reliable fit, locking into place with an audible snap for added peace of mind during daily activities.
  • Easy Application and Removal: Designed for user convenience, the skin barrier is easy to fit, apply, and remove, simplifying the ostomy care routine.
  • Adheres to Moist and Dry Skin: Whether the skin is moist or dry, the skin barrier provides a firm hold, offering versatility and comfort for individuals with different skin conditions.
  • Customizable Cut-to-Fit Design: Accommodating irregular stoma sizes, the cut-to-fit design allows users to tailor the ostomy wafer for a precise and comfortable fit, promoting individualized care.
  • Versatile Usage: Suitable for both colostomy and ileostomy with semi-formed stomal output, the product is designed to support various lifestyles. It can be confidently worn during swimming, bathing, showering, daytime or nighttime, and even during exercise.
  • Collar Options for Personalized Comfort: Choose between the acrylic tape collar for enhanced stability with an additional layer of adhesive support or the no tape collar for a sleek, tape-free alternative, catering to individual preferences and sensitivities.
From: $57.95
Product Information

Ostomy Barriers: 1-Piece vs 2-Piece Ostomy Systems

Ostomy wafers adhere to the skin around your stoma and connect to an ostomy bag. Ostomy wafers are also called baseplates, barriers, and flanges. The skin barrier is designed to protect delicate stomal skin from caustic output. These are two types of ostomy systems: When ostomy wafers are pre-attached to the bag and cannot come apart, it's considered a 1-piece ostomy system. While 2-piece systems are separate and connected to one another by the user. If you use a 1-piece system, both the wafer and bag must be disposed of when the bag is full. With a 2-piece system, you can remove the bag from the flange and throw it away, leaving the wafer attached to your body.

If you choose to use 2 piece ostomy bags, keep in mind that flanges will only connect with an ostomy pouch system from the same brand’s product line. You cannot use a flange from one brand and connect it to a pouch from a different brand. This also applies to different product lines manufactured by the same company. For instance, you cannot use a Coloplast Sensura flange with a Coloplast Assura pouch. Brands often use colors to represent stomal opening sizes, making it easier to match up the wafer with the corresponding pouch. This is another benefit of staying within the same product line once you find the wafer size that works best with your stoma.

Customizable Wafers

Cut to fit wafers allow you to customize the size and shape of the opening in the barrier. They are beneficial for new ostomates, because after surgery the stoma will change size and shape. These are also helpful for people who are in between sizes or don’t have a perfectly round stoma. Pre-cut wafers or flanges have an existing hole cut out, preventing you from having to cut the opening yourself. For those with established and rounder stomas, using a pre-cut flange can save you the time of fitting the wafer once you know which flange size works best for you.

Ostomy Seals

It is rare that an ostomy barrier will fit perfectly around your stoma. Usually there is a small gap between the stoma and the hole of the barrier. Leaving open gaps can cause stoma output to leak under the wafer, which could damage stomal skin. Ostomy seals are placed underneath your wafer to fill in the gaps between the ostomy wafer and your stoma. These barrier rings are made from a flexible material and can be fitted to the size and shape of your stoma. We also carry moldable flanges, which have a barrier ring-like material already built into the flange.

Skin Protection

Skin prep wipes and ostomy barrier sprays can also protect your stoma from redness and irritation or help treat damaged skin. Barrier sprays and wipes form a thin layer on the skin that shields it from moisture and output. Some ostomates apply stoma powder to the skin and follow up with skin prep product afterward. This process, known as crusting, protects the stomal skin and helps the wafer adhere to the body.

Buy Ostomy Wafers Online

Order ostomy products and supplies online that can be quickly shipped to your door. Shop our large collection of ostomy wafers now.

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