Ateco

Ateco 404 Large 2-Piece Plastic Coupler for Pastry Bags

$1.50

Key Features:

2-piece large plastic coupler designed to accommodate pastry tubes ranging from 9/16" to 11/16", making it ideal for professional decorators working with oversized piping tips
Eliminates the need to empty your decorating bag when switching tips, saving significant time and labor during high-volume decorating
Compatible with large-sized pastry tips that have a bottom diameter greater than 3/4", including popular Ateco tips such as the 828, 829, and 849, as well as Russian nozzle tips
Ridged sides along the ring provide a secure, easy-grip assembly, ensuring the pastry tip is locked firmly in place during use and preventing leaks
Constructed from durable white plastic with a top diameter of 1", bottom diameter of 1 3/8", and height of 2 3/16" for a snug, reliable fit
Requires trimming of reusable bags before use; not compatible with canvas bags with a sewn seam
From Ateco, an August Thomsen brand with over 100 years of trusted craftsmanship supplying professional bakers worldwide

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Ateco 404 Large 2-Piece Plastic Coupler for Pastry Bags

$1.50

Detailed Description

The Ateco 404 is a 2-piece large plastic coupler engineered for professional cake decorators and bakery operations that rely on large-format piping tips. Designed to accommodate pastry tubes sized 9/16, 5/8, and 11/16, it is especially well-suited for large tips with a bottom diameter greater than 3/4 and is fully compatible with Russian nozzle tips. Its core advantage is the ability to swap out piping tips mid-task without emptying the decorating bag, saving valuable time and reducing waste. Ridged sides on the locking ring allow for fast, secure assembly and disassembly with minimal effort. Crafted from durable white plastic, this coupler delivers a reliable, leak-resistant fit ideal for bakeries, cafes, and professional pastry kitchens.

Product Details

Precise Tube Compatibility

Accommodates 9/16", 5/8", and 11/16" pastry tubes for large-tip decorating.

Durable Plastic Construction

Built from sturdy, food-safe white plastic designed to hold up through repeated use.

2-Piece Set Included

Comes with both the coupler base and ridged locking ring - ready to use right away.

Ateco 404 large white plastic coupler assembled, viewed from the side

Change Tips Without Emptying the Bag

The Ateco 404 Large Plastic Coupler lets you swap out large piping tips mid-session without having to empty or change your decorating bag. A secure threaded connection keeps the tip firmly in place, preventing leaks and maintaining piping precision.

Eliminates downtime when switching between large tip designs
Snug fit prevents frosting leaks at the connection point
Not compatible with canvas bags with a sewn seam

Ateco 404 coupler shown disassembled into two white plastic pieces: base and ridged ring

Easy Two-Piece Assembly

The coupler separates into a tapered base and a ridged locking ring. Ridged edges along the ring provide extra grip, making assembly and disassembly quick even with frosting-coated hands.

Ridged ring sides for confident, no-slip tightening
Tapered base fits snugly through trimmed reusable bags
Works with Russian nozzle tips for advanced floral designs

Ateco 404 large white plastic coupler fully assembled at an angle, showing ridged ring and tapered base

Built for Large-Format Decorating

Designed specifically for large pastry tubes with a bottom diameter greater than 3/4", this coupler handles the bigger tips needed for bold swirls, rosettes, and high-volume decorating work. It pairs with tips such as the Ateco 828, 829, and 849 series.

Ideal for bakeries, cafes, and dedicated cake decorators
Fits large tips with bottom diameter over 3/4"
Compatible with 9/16", 5/8", and 11/16" pastry tubes

Key Specifications

MaterialDurable white plastic

Tube Fit Range9/16" to 11/16"

Pieces Included2 (base + ring)

DimensionsTop: 1" | Bottom: 1 3/8" | H: 2 3/16"

From the Cresco Resco Team

Why You'll Love It

The Ateco 404 Large Plastic Coupler is the reliable, no-fuss solution for decorators who work with large piping tips and want to keep their workflow moving.

Perfect for bakeries, cafes, and home decorators working with oversized tips like the 828, 829, or Russian nozzles.
The ridged locking ring and secure threaded fit mean tips stay put and frosting goes exactly where you want it.
Pair with reusable decorating bags (trimmed as needed) and large star or petal tips for professional-looking results.

Specifications

Brand	Ateco
Model Number	404
Material	Plastic
Color	White
Number of Pieces	2
Size	Large
Compatible Pastry Tube Sizes	9/16", 5/8", 11/16"
Compatible Tip Types	Large-sized pastry tips with bottom diameter greater than 3/4"; Russian nozzle tips
Not Compatible With	Canvas pastry bags with sewn seams
Height	2 3/16"
Top Diameter	1"
Bottom Diameter	1 3/8"
UPC	014963004043