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Sun Joe Pressure Washer Guide

Sun Joe SPX pressure washers share a brand family but not one universal parts interface. Match the complete model number, rated pressure/flow and the documented bayonet or M22 connection path before replacing hoses, guns, wands or accessories.

Start with the complete SPX model number

Sun Joe uses the SPX name across many generations and variants. Record the full model—including suffixes such as QW2, XT or MAX—before matching a hose, gun, wand, nozzle or adapter.

For exact replacement records, continue to Sun Joe pressure washer parts & compatibility.

Sun Joe SPX is a family, not one connection standard

Sun Joe's official store still centers its pressure-washer lineup on SPX machines, but the model family spans different output levels and accessory paths. The familiar SPX3000 is currently listed at 2030 PSI certified rated pressure and 1.2 GPM certified rated flow, while the newer SPX3000-QW2 is listed at 2200 PSI rated pressure and 1.1 GPM rated flow. SPX2990-BLK is listed at 1800 PSI and 1.1 GPM. Similar branding therefore does not prove identical hose, gun or accessory fitment.

Official-store examplePublished outputIncluded connection cluesCompatibility takeaway
SPX30002030 PSI / 1.2 GPM certified ratedFive quick-connect spray tips; 20-ft high-pressure hoseUse the model-specific SPX3000 parts list for hose/gun replacement.
SPX3000-QW22200 PSI / 1.1 GPM ratedQuick-connect nozzles; 20-ft high-pressure hoseSame broad SPX3000 name, different documented output and accessory bundle.
SPX2990-BLK1800 PSI / 1.1 GPM ratedQuick-connect lance/nozzles; 20-ft hoseDo not infer SPX3000 replacement-gun fit from appearance.
SPX200/1000/2000/6000/7000 familiesVariesSun Joe documents bayonet-gun conversion via SPX-BMM22FBayonet-to-M22 conversion is a real manufacturer-defined interface path.

Sun Joe documents both bayonet and M22 paths

The SPX-BMM22F adapter is unusually useful compatibility evidence. Sun Joe says it converts a bayonet gun on listed SPX200, SPX1000, SPX2000, SPX6000 and SPX7000 families to an M22 14 mm lance. Separately, SPX-M22M2F is documented as a 14 mm M22 male to 15 mm M22 female hose adapter for SPX-series pressure washers. These records show why “M22” alone is incomplete: the inner nipple subtype and which side of the system you are adapting still matter.

Replacement parts can be strongly model-specific

Sun Joe's SPX3000-31 trigger gun is explicitly listed for SPX3000, SPX3001, SPX3500, SPX3501, SPX4000 and SPX4001. The SPX3000-33 factory hose has a different, broader model list including multiple SPX3000, SPX3200, SPX3500, SPX4000, SPX4500 and SPX4600 variants. Those are manufacturer-listed fitment records and are stronger evidence than a retailer description saying “fits Sun Joe.”

At the same time, the SPX-25H extension hose is published for most SPX pressure washers except SPX1500, with M22 male/female ends and a 2300-PSI rating. That makes it a useful extension-hose record but not a universal replacement for every model.

Do not confuse a family-wide accessory with an exact replacement part

Sun Joe publishes some accessories for “all SPX” or broad SPX families, but exact replacement guns, hoses and hardware packs can have narrower model lists. Use the broad accessory claim only for the function the manufacturer actually documents.

Manufacturer sources

Sources reviewed August 28, 2026. PressureWasherMatch.com is independent and is not affiliated with or endorsed by Sun Joe.

Frequently asked questions

Are all Sun Joe SPX pressure washer parts interchangeable?

No. Sun Joe publishes broad SPX-family accessories, but it also publishes model-specific guns, hoses and hardware packs. Match the exact washer model and the manufacturer-listed part scope.

What pressure and flow does the current SPX3000 use?

The current official SPX3000 store page lists 2030 PSI certified rated pressure and 1.2 GPM certified rated flow. Other SPX3000-branded variants can have different ratings, so use the exact suffix and product page.

Does Sun Joe use M22 pressure washer connections?

Some Sun Joe SPX accessories use M22, and Sun Joe sells adapters that document M22 14 mm and M22 15 mm interfaces. That does not mean every SPX connection is the same; some gun-side paths use a bayonet interface.

Can I use a normal M22 wand with a Sun Joe bayonet gun?

Sun Joe sells the SPX-BMM22F adapter specifically to convert listed SPX bayonet-gun families to an M22 14 mm lance. Use the adapter only within its published model-family scope.

Does the SPX-25H extension hose fit every Sun Joe pressure washer?

No. Sun Joe lists it for SPX pressure washers except SPX1500, rates it to 2300 PSI and documents M22 male/female ends. Machines outside those limits or with different interfaces need another hose path.

Where should I start when replacing a Sun Joe gun or hose?

Start with the exact SPX model number. Then use Sun Joe genuine-parts records to find a model-listed gun or hose before considering adapters or generic alternatives.