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Regularly: $0.99/Each

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
  • Accommodates 9/16", 5/8", and 11/16" 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?

Color White
Material Plastic
Shape Round
Size Large
Type Couplers


This Ateco 404 white, large coupler allows you to interchange standard sized tubes and small tubes without emptying the contents of your decorating bag to save time and labor. It accommodates 9/16", 5/8", and 11/16" pastry tubes. In addition, 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 plastic coupler 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!

Overall Dimensions:
Top Diameter: 1"
Bottom Diameter: 1 3/8''
Height: 2 3/16''

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 404 2-Piece Large Plastic Coupler (August Thomsen)

    4.9 stars from 107 reviews


    People Talk About:

    tips large coupler great pastry piping bag bags couplers easy

    Makes piping super easy, fun, and creates almost no waste of product. This allows you Tom easily switch between different tips without having the hassle of having to move everything into a new piping bag just to change the tip you are using

    Posted on

    if you use ateco pastry tubes (piping tips) and ateco bags, these couplers are always the perfect fit. they're the best for when you do a lot of piping and need to change tips quickly and easily.

    Posted on

    This Adco large plastic Cupler has made my life so much better the best ever spend now instead of sitting here switching pastry bags and all this stuff is a have to do is unscrew the coupler and put a new Tippin fantastic product fantastic price

    from N/A Posted on

    Item works great makes my job easier well worth the price,it does gets stuck while tightening on icing bag like some other brand great couplet

    from Leras Cakes & Catering Posted on

    What a great convenience this product is very glad I got it it's great for when I need to do different styles of tips with the same product very nice I like it

    from Place to be Bistro Posted on

    Love these very heavy duty couplers to hold my tips. I do use them with my disposable bags with ease. The price is unbeatable. It's a win-win.

    from Antoinette Bakery Posted on

    This 2 piece coupler works perfectly with the large Ateco plastic pastry bag. The larger piece goes inside the bag, then the metal tip is placed on the outside of the bag, and the collar screws on over the metal tip to keep the tip in place.

    Posted on

    This was a larger tool that I needed and webstaurant delivered. It is of great quality and is my go to tip holder now. I use it for larger piping and it is great.

    from Beyond Horizons Posted on

    Great larger plastic coupler for larger decorating tips! Its really sturdy and heavy duty! Price is great. We recommend this product to any pastry chef!

    from Tom Posted on

    It is a handy item to have if you are planning on switching tips on your pastry bag. It has sturdy, quality construction and is large enough, so you can easily clean it out.

    Posted on

    We use mostly large tips to frost our items and these large couplers are hard to come by. Now that we have them it makes the job so musty easier thankfully we found webstaurant to order these when we need to.

    from Sweet Pea's Cupcakery Cafe Posted on

    This is q must have when using pastry bags this will allow you to change your tips quickly and still use bigger tips a must have

    from Sweet Candy Finds Posted on

    I love these couplers. The quality is so much better than the Wilton brand I have always used. I will definitely be buying more in all sizes.

    Posted on

    Great coupler and works well with both my plastic and cloth bags. I purchased extras in case one would break- I think I will lose it before I would break it.

    Posted on

    These large plastic couplers are perfect for use with large pastry tips. They work well with reusable & disposable pastry bags and make it very easy to switch between tips using the same pastry bag. Reminder--these are for large pastry tips only, not for use with regular size!

    Posted on

    I love these coupletrs! Made of high quality plastic, they are quick and easy to thread. Easy to clean & they are sturdy enough to be run through the dishwasher.

    Posted on

    Ateco 404 2-Piece Large Plastic Coupler (August Thomsen) if your using a pastry nag it makes it easy to attach your decoration tube a must for any baker

    from PowerQuee Media Posted on

    Great quality and arrived in perfect time to use on the ruffle cake. Worth using when I get busy and have to make ruffle, rosette, or other type of cakes needing large tubes.

    Posted on

    Perfect size! I have been looking for the biggest tips I could find. And I have found them. This makes putting frosting around the entire cupcake much easier!

    Posted on

    These couplers are AWESOME! I love having these around to put into my bigger bags for my bigger tips when I decorate my cupcakes. I have been looking for these and am so glad that I finally found them! Highly recommend!

    from Small and Simple confections Posted on

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