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The SPX3000 uses Sun Joe’s standard 1/4-inch quick-connect fitting, so both Sun Joe’s own foam cannons and most third-party pressure-washer foam cannons with a matching quick-connect or M22 adapter will thread right on. These seven are real, currently sold cannons confirmed to fit.
| # | Product | Price | Where to buy |
|---|---|---|---|
| 1 | Sun Joe SPX-FC34-PRO Foam Cannon | $25-$35 | Amazon · eBay |
| 2 | Sun Joe SPX-FC34 Foam Cannon | $18-$25 | Amazon · eBay |
| 3 | Sun Joe SPX-FC26 Foam Cannon | $15-$22 | Amazon |
| 4 | Chemical Guys EQP320 MTM PF22 Professional Foam Lance | $35-$45 | Amazon |
| 5 | Chemical Guys Adjustable Foam Cannon (32 oz) | $25-$32 | Amazon · eBay |
| 6 | Chemical Guys Big Mouth Max Release Foam Cannon | $28-$38 | Amazon · eBay |
| 7 | MATCC Foam Cannon | $15-$20 | Amazon · eBay |
The picks, in detail
Sun Joe SPX-FC34-PRO Foam Cannon
Sun Joe’s own PRO-tier cannon, built to bolt directly onto the SPX3000’s quick-connect fitting with no adapter needed.
- Adjustable spray nozzle (pinpoint to wide fan)
- Detergent dial for soap-to-water ratio
- Direct fit for SPX-series pressure washers
- Guaranteed factory fitment on the SPX3000
- Thick, clinging foam output
- Costs more than Sun Joe’s base-tier cannon
Sun Joe SPX-FC34 Foam Cannon
Sun Joe’s standard 34 oz foam cannon, the most commonly bundled and recommended cannon for SPX3000 owners.
- 34 oz detergent bottle
- Twist-adjustable soap ratio
- Direct SPX-series fitment
- Reliable direct fit at a lower price than the PRO model
- Good foam thickness for pre-wash soaking
- Fewer nozzle adjustment options than the PRO version
Sun Joe SPX-FC26 Foam Cannon
A smaller-capacity Sun Joe cannon for owners who wash more often and don’t need a large bottle each time.
- 26 oz detergent bottle
- Direct SPX-series fitment
- Adjustable foam knob
- Lighter and easier to handle for smaller vehicles
- Cheapest of the official Sun Joe cannons
- Smaller bottle means more refills on larger vehicles
Chemical Guys EQP320 MTM PF22 Professional Foam Lance
Attaches via a 1/4-inch universal quick-connect and ships with a screw-on M22 adapter, covering both the SPX3000’s stock fitting and larger-fitting wands.
- 1/4-inch quick-connect with included M22 adapter
- Adjustable foam output
- Professional-grade nozzle
- Adapter covers multiple pressure washer fitting types
- Chemical Guys’ detailing-grade foam quality
- Pricier than Sun Joe’s own cannons
Chemical Guys Adjustable Foam Cannon (32 oz)
A quick-connect-fitted 32 oz foam cannon built for pressure washers, with a control knob to dial in foam thickness.
- 32 oz bottle
- Quick-connect fitting
- Adjustable foam control knob
- Thicker, shaving-cream-style foam than budget cannons
- Reputable detailing brand
- Mid-range price versus basic third-party cannons
Chemical Guys Big Mouth Max Release Foam Cannon
A large-mouth cannon with a bigger bottle opening for easier filling and a fully adjustable foam stream.
- Large bottle mouth for easy filling
- 34 oz capacity
- Fully adjustable foam stream
- Easier to refill mid-wash than narrow-neck cannons
- Works for car, home, and boat washing
- Larger bottle adds some bulk to the wand
MATCC Foam Cannon
A budget third-party foam cannon confirmed by SPX3000 owners as a direct-fit, lower-cost alternative to the name-brand options.
- Quick-connect fitting compatible with SPX-series washers
- Adjustable foam knob
- Included bottle
- Noticeably cheaper than Sun Joe or Chemical Guys cannons
- Direct fit confirmed by SPX3000 owners
- Build quality and foam thickness trail the premium brands
Buying tips
- Check the fitting before buying — the SPX3000 uses Sun Joe’s standard 1/4-inch quick-connect, so a cannon listed for that fitting (or bundled with an M22 adapter) will thread on without extra parts.
- Use a dedicated snow-foam soap, not dish detergent — thin soaps won’t produce the thick, clinging foam a cannon is designed for.
- Let the foam sit 3-5 minutes before rinsing to let it lift dirt off the paint, but don’t let it dry on the surface in direct sun.
- A bigger bottle (32-34 oz) means fewer refills on a full-size vehicle; a smaller 26 oz bottle is easier to handle on motorcycles or smaller cars.
As an Amazon Associate and eBay Partner, toptenpick.com earns from qualifying purchases. Prices and availability are subject to change.