Fuji Spray Bottom-Feed Cup Parts Kit for 2095 1Qt — 9-Piece Diaphragms, Gaskets & Check-Valve Tubes

Fuji Spray 2098 Bottom Feed Cup Parts Kit is a 9-piece replacement pack containing three gaskets, three diaphragms, and three pressure tubes with check valves to restore proper sealing and pressurization for Fuji 2095 1Qt cup assemblies. Keeping a spray system running smoothly depends on small parts that maintain seals and prevent paint from backing into air lines. The Fuji Spray 2098 kit supplies the wearable components you’ll need to service the newer bottom-feed cup used on the Fuji 2095 1-quart assembly. These parts are consumables—replacing them at the first sign of wear helps avoid leaks, pressure loss, and messy cleanups.

How do these parts stop paint from backing up into the gun?

The diaphragms, gaskets, and pressure tubes with check valves work together to isolate fluid from the air path. The diaphragm creates a flexible barrier; gaskets ensure a tight seal between mating surfaces; the pressure tube and check valve let pressurizing air enter the cup while blocking liquid from returning. Together they reduce the risk of paint entering the turbine or air supply.

• Diaphragms flex to accommodate pressure changes without leaking.
• Gaskets maintain a consistent seal at cup joints and lid interfaces.
• Pressure tubes with check valves allow one-way airflow into the cup only.

What exactly comes in the 2098 kit and what are the parts made of?

This kit includes nine pieces: three diaphragms, three gaskets, and three pressure tubes fitted with check valves—sufficient for multiple service cycles. The components are molded from a durable clear plastic designed to resist common solvent-based and waterborne coatings while remaining flexible where needed.

• 3 x diaphragms — flexible sealing membranes for pressure control.
• 3 x gaskets — flat seals for cup and lid interfaces.
• 3 x pressure tubes with integrated check valves — one-way air flow protection.

Will this kit fit my Fuji cup or other Fuji assemblies?

Use this parts kit exclusively with the Fuji 2095 1-quart bottom-feed cup assembly; it was designed for that newer cup configuration. It is not compatible with the older Fuji 2042 cup assembly—those cups require a different parts kit. Always confirm your cup model before purchasing to ensure fit and function.

• Compatible: Fuji 2095 1Qt cup assembly only.
• Not compatible: Fuji 2042 cup assembly or other legacy cup models.
• If you have a 2042 cup, search for the parts kit specified for that assembly (part 2039).

How often should I replace these wearable parts to keep performance steady?

Replacement frequency depends on use, solvent type, and maintenance habits, but inspect seals and diaphragms regularly for cracking, hardening, or leaks. If you notice reduced cup pressure, visible seepage, or paint in the tubing, swap the worn components with fresh parts from this kit to restore reliable operation.

• Inspect seals before major projects and after heavy solvent use.
• Replace parts at the first sign of deformation, splits, or leakage.
• Keeping spare kits on hand reduces downtime during jobs.

Who is this for? This 2098 bottom feed cup parts kit is tailored for professional finishers, body shop technicians, and serious hobbyists who own a Fuji 2095 1-quart cup assembly and want to maintain consistent spray performance. If you rely on your turbine and cup for repetitive spraying and want a straightforward maintenance solution that prevents pressure loss and paint contamination, this set provides the essential consumables to keep your system sealing and functioning properly.

FAQ

Q: Is the 2098 kit compatible with Fuji 2042 cups?

A: No. The 2098 kit fits only the Fuji 2095 1Qt cup assembly. For 2042 cups, use the parts kit designated for that assembly (part 2039).

Q: What do the pressure tubes with check valves do?

A: They allow one-way air into the cup to pressurize it while preventing liquid paint from flowing back into the air line.