Product Description
Graco Fusion FX Cartridge – Replacement Parts for FX Spray Foam Guns
Every Fusion FX gun on a rig depends on one small part to keep A-side and B-side chemicals meeting correctly at the mix chamber: the cartridge. Christian Fabrication stocks the Graco Fusion FX cartridge for contractors who need a field-ready rebuild, not a shipping delay. Run enough jobs and a cartridge wears out. We carry the FX cartridge alongside the rest of the parts a rebuild calls for, so your gun gets back to spec instead of sitting on a shelf.
The Graco Fusion FX Cartridge, Built for the FX Gun's Front End
The FX cartridge isn't interchangeable with cartridges from other Graco guns, and that's by design. It's engineered around the Fusion FX gun's compact front-end architecture - the lightest, most balanced gun Graco makes - and it works hand-in-hand with QuickFlex technology to switch cleanly between AP and CS spray modes. Once it's seated, it:
- Seals A-side and B-side chemical ports with the precision needed to hold ratio under load
- Maintains a consistent spray pattern even when output and pressure climb
- Pairs with a variety of mix chamber sizes, so you can tailor your output to the job
FX Cartridge vs. PC ProConnect: Know the Difference Before You Order
Contractors moving between gun models sometimes assume cartridges are universal. They're not. FX mix chambers actually push slightly more material than equivalent PC or AP chambers, which matters when getting your material dialed in for the best finished product. The PC takes a BLUE cartridge while the FX is a blue gun and takes a BLACK cartridge - so confirm you're buying for an FX gun specifically, not a PC ProConnect setup, before checkout.
Rebuilding the Gun: What Goes in the Cartridge Swap
A cartridge swap starts the same way every time: depressurize the system fully, then pull the existing cartridge from the gun's front end. Seat the new Graco Fusion FX cartridge with its orientation matched to the gun body - get this wrong and material won't seal correctly. From there, a proper rebuild also needs:
- A clean round mix chamber (flat chambers now available) swapped in alongside the cartridge for a leak-free mating surface
- Fresh O-rings and front cap components, checked before reassembly to rule out crossover contamination
- The Fusion FX complete parts kit on hand if the trigger or front cap show wear, since both are high-turnover items
Stocking these together, rather than ordering one part at a time, is what keeps a rig ready for back-to-back jobs instead of parked waiting on a second shipment.
Once the gun's back together, a cleaning tool from Piranha Tools makes routine maintenance between rebuilds a lot less painful.
Why Contractors Order Fusion FX Cartridges From Christian Fabrication
We're not a general hardware retailer that happens to carry spray foam parts - Christian Fabrication is built around this industry, and it shows in what we stock and how fast we ship it. Our team has hands-on familiarity with the FX gun system and can help you cross-reference the right cartridge, mix chamber, and seal kit against your setup before you check out, so you're not guessing at part numbers. Competitive pricing and fast turnaround keep the gun on your rig, not on backorder.
Frequently Asked Questions
How do I order Fusion FX cartridges?
The Graco Fusion FX replacement cartridges can be purchased as a single cartridge, 3-pack or 5-pack. The box containing the 5-pack of cartridges provides the largest cost savings per cartridge as compared to the single or 3-pack.
What's the difference between the Fusion FX cartridge and the PC ProConnect cartridge? The FX cartridge is built specifically for the Fusion FX gun's front-end architecture and works with QuickFlex AP/CS switching, while the PC ProConnect cartridge fits Graco's PC-series guns. FX mix chambers also output slightly more material than equivalent PC chambers, so the two aren't interchangeable.
How do I know which mix chamber size to pair with my FX cartridge? Match your mix chamber to the output volume your job requires; higher numbers mean higher material throughput (ex: FX47RD has less material output than an FX52RD) Our Fusion FX parts selector references cartridge and chamber sizing so you order the right combination the first time.
What else should I order with a Fusion FX cartridge? Most rebuilds also need a clean mix chamber and rear seal, O-rings, and front cap components, since these wear alongside the cartridge. Ordering them as a bundle rather than piecemeal cuts down on shipping delays between jobs.
