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Ships free with Plus
Regularly: $0.99/Set

Other Available Sizes:

  • Eliminates the need to empty your decorating bag before changing tips
  • Made of durable, white plastic
  • Securely fastens pastry tip (sold separately) in place
  • The two rings accommodate 3/16", 1/4", 5/16", 3/8", 7/16", and 1/2" pastry tubes
  • Ideal for bakeries and cafes
  • Ridged sides along ring for easy assembly

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How to Pipe a Rose with Buttercream Frosting

How to Pipe a Rose with Buttercream Frosting

Use these simple steps to professionally add a buttercream rose. You'll need a spatula, rose tips, a leaf tip, couplers, a flower nail, a rubber spatula, and piping bags. Begin by squeezing cream onto the flower nail in a circular motion, creating a lump with a tip on it. To create the layers of a rose, squeeze cream in an short arch motion and continue rotating the rose until you have the desired amount of layers, or petals.

Copy and paste the embed code above.

Ever wonder how to professionally decorate your cake? Watch this short video and learn how to style up your next cake with a classic buttercream rose.

Ateco 402 Specs
Color White
Material Plastic
Shape Round
Tip Size Medium
Type Couplers

Ateco 402 Details

This Ateco 402 3-piece, white, medium coupler kit allows the cake decorator to change similar sized tubes without emptying the contents of the decorating bag. This convenient plastic set will be an ideal addition to any kitchen! The 7/8" coupler ring accommodates 3/16", 1/4", and 5/16" pastry tubes, as well as Ateco's 231 large bismark tube. In addition, the 1" coupler ring accommodates 3/8", 7/16", and 1/2" pastry tubes. Plus, ridged edges on the ring allow you to easily assemble the coupler to the base with minimal effort. Ideal for bakeries, cake decorators, coffee shops, and anywhere else you need to decorate baked goods, this 3-piece medium coupler kit will get the job done!

Bringing you innovation and quality for over 100 years, Ateco, an August Thomsen brand, has been internationally known in the industry for creating baking tools of superior craftsmanship and design. By continually improving on tools, materials, and packaging, Ateco is dedicated to providing professional bakers with the kitchen essentials they need to succeed in an ever-evolving industry!

Kit Includes:
- (1) 7/8" Coupler Ring
- (1) 1" Coupler Ring
- (1) Base

Overall Dimensions:
Top Diameter: 3/4"
Bottom Diameter: 1 1/4''
Height: 2 1/8''

Resources and Downloads for
Ateco 402

Pastry Tube Chart Pastry Tube Chart

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Compatible Models

This item is compatible with the listed models, according to the manufacturer. We do our best to keep this listing as accurate and up-to-date as possible. If you have any questions or concerns, feel free to contact a Customer Solutions Specialist before placing your order.

Customer Reviews

  • Overall User Rating: Ateco 402 3-Piece Medium Plastic Coupler (August Thomsen)

    4.9 stars from 108 reviews


    People Talk About:

    tips coupler great ateco couplers medium bags pastry plastic tip
    1 out of 1 found this review helpful

    I love these. Use them all the time with cake decorating and so much easier to remove the tips and change the tip instead of using a new pastry bag. It is the tools like these that make a pastry chefs time easier, less hassles and the tools one needs.

    Posted on

    1 out of 1 found this review helpful

    We love these couplers!! August Thomsen certainly makes very sturdy and well-built and designed items. You can't go wrong with these to use on a daily basis.

    from Heavenly Hershey's Ice Cream Posted on

    1 out of 1 found this review helpful

    Anyone who does a lot of pastry work knows the sizes and varieties of tips is infinite. Having the right sized coupler is an absolute if you want to achieve the proper fit and seal to produce the desired results. Nobody beats Ateco's products or Webstuarant's prices!

    from Gert's Goodies Posted on

    1 out of 1 found this review helpful

    Ateco 402 3-Piece Medium Coupler Set (August Thomsen) fit perfectly with the tip and pastry bag. Great price for an good product. Will buy again if needed.

    from T & C Catering Services Posted on

    Ateco products are such great quality and this coupler is no exception. Easy to thread and clean, a must have for cakes, pies or cheesecake decorating.

    from Sugar Lane Bakery Posted on

    These are MUCH larger than standard sized couplings, it comes with one base and two top nuts to twist on top one is smaller and one is larger. These are great for all the intermediate sized piping tips. These are made of very thick, durable plastic and are dishwasher safe.

    Posted on

    what a great purchase! I love being able to switch my tips without having to switch bags too or waste product! great great concept. wish i had this long ago!

    Posted on

    I like to use this big coupler for icing cup cakes. It's good quality and I give it 5 stars. It washes easily and is a heavy duty plastic.

    from Griffins' Catering Posted on

    As with all Ateco products, this is a great quality product. Makes changing tips easy and clean. Fits nicely with Ateco pastry tips in bags. Easy to clean.

    Posted on

    This coupler is exactly what I expected it to be. A great coupler for use on bigger pastry bags and large projects. I would recommend it to anyone.

    Posted on

    This medium size coupler works great with my 18 inch piping bags and my larger piping tips!

    These couplers are great, having multiple sizes of couplers on hand is always a great idea to ensure you have the right ones for your tips. These make it so easy to change tips on a full piping bag. The price here is great too.

    Posted on

    These couplers work just as well as most couplers. Quality is average, nothing exceptional but nothing bad to report. They do the job they're designed to do.

    from Sweets by Nonnie Posted on

    These are the lowest priced couplers that I have been able to find and make switching tips quick and easy. The quality of the plastic is sturdy and mine are going on over a year without any issues.

    from The Sweet Batter Posted on

    The ateco 402 3-piece white medium coupler kit is perfect for cake decorating no no more emptying your bags before changing tips high quality durable plastic securely fastens

    from Kathy J Posted on

    Medium size coupler works great by itself for piping out bite size eclairs without needing a special tip attached to it! Cleaning is a breeze.

    Posted on

    This coupler uses good quality plastic. It's very easy to put on and off. The price is just right. I have a lot of Ateco products.

    Posted on

    These 3-piece medium plastic couplers are very nice and professional quality. We've only had them for a few weeks but so far they're holding up great.

    from KRN Enterprise, LLC Posted on

    This is a great little coupler for pastry bags! It is a nice, tight seal and fits perfectly on Ateco pastry tips. It comes with two separate sizes so you don't have to buy two.

    Posted on

    Ateco 402 3-Piece Medium Plastic Coupler

    Great coupler that fits a lot of different sizes of piping tips. Very versatile and definitely a must buy for the price. So easy to use and great to interchange tips with!!

    Posted on

    i use this coupler by itself because I haven't figured out which size pastry tips it fits. it is perfect for me to use it to fill my cakes.

    from whiskedbymukta Posted on

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