• Quantity Discounts!
Lot pricing allows you to buy an item in a set bulk quantity to save money. We list the amount of product you need to purchase in order to receive lot pricing under the orange ribbon, so you always know how to get the best deal. The same discount is applied for each lot you purchase.


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

UPC Code:




Usually Ships in 1 Business Day
When will I receive my item?

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.

Color White
Material Plastic
Shape Round
Size Medium
Type Coupler Kits


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''

Pastry Tube Chart Pastry Tube Chart

A PDF viewer is required to view this product's information. Download Adobe Acrobat software

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 101 reviews


    People Talk About:

    tips coupler great couplers medium ateco tip plastic bags pastry
    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

    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

    Nothing wrong with the quality of this but it is so large that I find it impracticable and I just don not use it. Might be helpful for others.

    from Coco & Mini's LLC Posted on

    The best thing about these medium couplers is the fact that they come with two coupler rings that allow us to conveniently use two different sized pastry tubes.

    Posted on

    A must have tool to make changing tips more convenient. The Ateco 402 is for medium sized tips while the Ateco 400 is for most tips of standard size. The quality of the plastic is solid and think it will take some punishment. The price is right so for convenience sake grab a few for you baking accessory collection.

    Posted on

    If you decorate anything that requires many different variations of icing styles, a coupler is a necessity. It makes it so easy to interchange tips without having to use a new bag.

    Posted on

    This coupler is good for medium sized tips. It fits perfectly. It even has 2 screw on pieces one for the medium tips and one for the large tips

    from Foxland market Posted on

    I really like this plastic coupler. It's very strong and holds the tip very firmly in. Does not pop off like some of the different brand couplers do. Definitely recomend.

    Posted on

    Very nice coupler

    These couplers are a good quality. They are sturdy and thick plastic and seem to hold up long term well . Im pleased with them and will buy again!

    from Everything Iced Cupcakes & More Posted on

User Submitted Photos & Video:

Get paid to review this product!

If you've used this product, simply log in and share your text, video, and photo reviews of it. The customers on the left did it, and you can too! Earn up to $16.00 per product.

Login or Register