The Grex AD33K Top Feed to Disposable Cups Adapter is a top feed airbrush adapter for connecting compatible disposable paint cup systems to select Grex airbrushes. This is an airbrush adapter designed for using disposable cups with Grex top feed airbrushes. Model Number: AD33K. If you already run a Grex airbrush and want faster setup, quicker color changes, and less cleanup between jobs, this is the part that makes that switch possible.

What matters here is function. The AD33K connects your paint cup system to your Grex airbrush so you can use disposable cup setups similar to 3M PPS 1.0 style systems. That is a real time-saver for painters and finish users who do not want to keep washing standard cups between every color or material change. For small-batch spraying, touch-up work, and repeat color swaps, that convenience adds up fast.

Grex built this adapter from precision machined stainless steel and aluminum, which is exactly what you want in a small connection part that has to seal properly and hold up to regular handling. This is not a throwaway plastic fitting. The machined metal construction helps keep the connection solid, and the PTFE seals are compatible with a wide range of solvents, which matters if you spray materials that would quickly wear out lesser seals.

On the practical side, the AD33K is about reducing hassle. Disposable cup systems are popular because they simplify mixing, spraying, storage, and cleanup. Adding that capability to a compatible Grex top feed airbrush gives you a cleaner workflow, especially when you are moving between coatings or trying to keep downtime low. If your current setup slows you down because of cup cleaning and material transfer, this accessory solves a very specific problem.

Compatibility is the key buying point, and Grex is clear about that. The adapter is made for select Grex top feed airbrushes, with listed fitment including Grex MF.TG, Tritium TG, XGi, and XA. If you are already in that Grex airbrush platform, this is a straightforward add-on that expands how you can feed material into the tool without changing airbrush brands or piecing together a questionable setup.

This accessory makes the most sense for users who already own one of the supported Grex airbrushes and want a cleaner, more flexible painting setup. That includes detail painters, finish users, automotive touch-up work, and serious hobby or studio users who want the convenience of disposable cup systems. If you do not need disposable cups, you do not need this part. If you do, this is the correct way to add that capability to a compatible Grex top feed airbrush.

Grex AD33K Top Feed to Disposable Cups Adapter Keeps a Good Airbrush Setup More Efficient

This is the kind of small accessory that makes a real difference if your Grex airbrush is already part of your regular painting setup.

• Who it's for: Grex top feed airbrush users who want to run disposable cup systems for quicker color changes and easier cleanup.
• Why it stands out: Proper Grex fitment, machined stainless steel and aluminum construction, and PTFE seals that hold up with a wide range of solvents.
• Worth knowing: This is a purpose-built adapter, not a universal fix for every airbrush. Check your Grex model before you buy.

• What does this adapter do? It allows a compatible disposable paint cup system to connect to select Grex top feed airbrushes.
• Which Grex airbrushes does it fit? Listed compatibility includes Grex MF.TG, Tritium TG, XGi, and XA.
• What is it made from? The adapter is made from precision machined stainless steel and aluminum and uses PTFE seals.
• Is it suitable for solvent-based materials? The PTFE seals are described as compatible with a wide range of solvents.