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Regularly: $0.99/Each

Other Available Sizes:

  • 7/8" and 1" coupler ring inclued
  • 7/8" coupler ring accommodates 3/16", 1/4", and 5/16" pastry tubes
  • 1" coupler ring accommodates 3/8", 7/16", and 1/2" pastry tubes
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36 reviews
MFR 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 (August Thomsen) 402 3-piece medium coupler set allows the cake decorator to change similar sized tubes without emptying the contents of the decorating bag. This convenient 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 (August Thomsen). The 1" coupler ring accommodates 3/8", 7/16", and 1/2" pastry tubes.

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.


Pastry Tube Chart Pastry Tube Chart

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Customer Reviews

Overall User Rating: Ateco 402 3-Piece Medium Coupler Set (August Thomsen) ( 4.8 stars from 36 reviews )

    well designed. very functional. easy cleanup. good grip for working the frosting on anything from full size cake to smaller cupcakes. very pleased with the item and would recommend to others. sturdy design and easy to assemble

    from Chad Fenner Posted on

    Awesome coupler, comes with an extra top just in case you lose the first one! Fits well with most of my tips! We recommend ateco to everyone!

    from CakeBox Posted on

    I needed a larger coupler and this one does the trick. This product was what I expected. They work like they are supposed too. Great price good product.

    Posted on

    This will work very well if the tip fits the coupler, but some of my smaller tip won't stay in it... But for the one thst fit it work very well!

    Posted on

    Couplers are a must have when frosting lots of things and working with tons of colors. I don't know how I would manage without these couplers!

    Posted on

    I'm glad I purchased this size and that it comes with two different coupler "lids". One is more open than the other one. The one that has a smaller opening fits well with my cupcake swirl tips. I use the Wilton 1B tip for my cupcake swirls.

    Posted on

    I really don't understand the reason for the 3rd piece of this 3 piece set but I use the two pieces just fine and use the 3rd as backup..

    Posted on

    This is a huge coupler works great with my large bags when I have to do a large quantity of cupcakes, cookies or cakes . Very cheap too!

    from stellas custom cakes Posted on

    They hold tightly which is very important. I had bought a set from a local store a few years back and put up with them not staying in place for too long before replacing them with these. Always a happy shopper here.

    Posted on

    These are a must have for anyone that is decorating cakes, When you have a big bag of Butter cream and you need to change to different tips this makes that change a breeze!

    Posted on

    I think I will stick to using my standard and large coupler as I cannot get the medium coupler to fit snuggly in a disposable pastry bag. Maybe it would work better with a regular pastry bag. Does anyone have any suggestions?

    Posted on

    Thank you for your review! We are sorry the coupler set did not suit. Our experts recommend putting the coupler in the disposable pastry bag tip and measuring before cutting to ensure that the opening is the proper size for the coupler. This should help to fix the issue for you!

    WEBstaurantStore.com Customer Solutions

    this medium coupler set has 2 different sizes but the one size fits the wilton large tips perfectly eg 2D and 1M. so nice to change tips without emptying all the icing out of the bag to get the tips out of the bottom!

    Posted on

    I need these, they make changing pastry tips so much easier and keeps the tip straight when filling the bag with icing or filling- really great!

    from Confections by Kristin Posted on

    Same Ateco quality at a great low Webstaurant Store price. The Medium Sized Coupler "set" comes with two medium sized top pieces, to fit different sized tips. This is my most used size.

    Posted on

    Excellent pricing for a must have item that seems to disappears far too often. Makes changing decorator tips a breeze and we can keep plenty on hand

    from miss debs Posted on

    This should be in every cake decorator's arsenal. If you're into decorating, having a coupler makes the job smoother as you don't need to change out the entire bag to switch tips. Simply insert the coupler in the bag, add your buttercream and attach your decorating tip. When you want a new design, switch to a new tip. Simple.

    Posted on

    Great coupler set and also inexpensive. I love the ateco products as they are very efficient for my new and growing business. Can't wait to try out some of their other products!

    Posted on

    The medium coupler set is nice to have on hand for the in between tip sizes that don't quite fit on the standard coupler. Would recommend.

    Posted on

    Just what I needed! I was looking for this size locally, but it was difficult. At this price, I had to buy it here. Haven't been disappointed yet.

    Posted on

    ateco medium couple set allows us to use all kinds of big tips like big star tip or big rose petal tip etc.. without consuming time for changing bags. it gives 2 different caps for different size of couplers... i love to use them while decorating cupcakes..

    Posted on

    Great for having to change tips on a piping bag often. Especially helpful for decorating cakes and other piping needs. Have held up to constant use and haven't had any problems with them what so ever.

    from One Dish Cuisine Posted on

    I could not live without these medium couplers!! They work great! I own 4 sets! & If I need more, I know where to find them!

    from Heart of Cupcakes Posted on

    Ateco 402 3-Piece Medium Coupler Set (August Thomsen). This set is necessary to quickly change out medium sized pastry tips. The material is durable enough but be careful not to over tighten or you can split the nut.

    Posted on

    Ateco 402 3-Piece Medium Coupler Set (August Thomsen) is a very nice set. and fits in alot of size bags. This set is very well priced.

    Posted on

    Once again, great product from Ateco. I use only Ateco for my decorating and have not been let down. They work great, hold the bags and tips in place and are a quality product.

    from Me Too! Posted on

    You can never have too many of these. I have dozens, and they come in handy when switching from one decorating tip to another. Very durable and easy to use and clean. A necessity for cake or cookie decorating.

    Posted on

    These are plastic, fit together nicely, and run through the dishwasher fine - although they clean up very nicely with just a quick wash out at the sink, too. It's so nice to be able to have a secure fitting on the end of my piping bags, and it sure makes it a LOT easier to fill eclairs, and pipe out thicker ingredients, but do be sure you know the right size for the right couplers, before you buy. It can be quite confusing. Now I have all 3 sizes, but they're cheap, and should last forever, so I'm happy. : )

    Posted on

    Works well if the tip fits the coupler. Some of my medium tips slide right out. Easy to change tips and clean up is easy.

    Posted on

    I love the couplers and the price is pretty reasonable. The closest thing to me is a michaels store which wants at least an extra 25 cents more than on here.

    Posted on

    I use these couplers to fill my pumpkin rolls without using a tip. It works great to make sure icing is evenly distributed

    This medium coupler is great with the two different collars all the tips fit snugly. They are a great value would buy multiples for this price.

    Posted on

    Thanks so much for having great products like these for so cheap I love it. You can;t find deals like this anywhere, These do not leak!!! they are perfect!

    Posted on

    This coupler set is great for making it much easier to work cleaner when frosting and decorating cakes and cupcakes!!! Easy to switch tips on same bag!!

    Posted on

    Have been using these couplers for a couple months now on a daily basis and they are holding up really well. Ateco is a good brand for tips and couplers and we would buy again!

    from Cupcakes Like It Sweet Posted on

    This coupler set works well. It is worth a try and worth every scent buy a few extra because you know you may lose a few.

    from Tristan's Posted on

    Couplers are a gift to cupcake decorating for a me and this store has them at great prices. I would recommend to anyone and will probably stock up!

    Posted on

    Coupler is of hard plastic and does not pop off do to the nice threads it was produced with. Other couplers leak and this one does not

    Posted on

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