Shortlist · Foam cannons
Foam cannons by connection
Foam cannons chosen as hardware by their connector: MJJC's 1/4 in quick connector S V3.0 and PRO V3.0, and the cannons SIMPSON and Westinghouse sell.
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Short answer
Buy a foam cannon by its connector first. For a wand with a 1/4 in quick-connect outlet, MJJC's S V3.0 and PRO V3.0 both come in a 1/4 in quick connector version.[1] SIMPSON and Westinghouse each sell one cannon version; read its connector on the maker's page. Then use the orifice your machine maker allows.
How we chose
We cover foam cannons as hardware only. A cannon is on this list only if:
- Its maker sells the version by connector. MJJC sells the PRO V3.0 in a 1/4 in quick connector version and in versions for Kärcher K, AVA, Nilfisk/Gerni/Stihl, Bosch/Black+Decker and Lavor/Parkside machines.[1] The body alone does not tell you which one fits.
- The orifice is stated, or the gap is clear. MJJC's S V3.0 with 1/4 in quick connector (SKU QRFLSV3) comes with a 1.25 mm orifice installed and a 1.1 mm orifice included.[2] MTM's PF22.2 likewise ships with a 1.25 mm orifice, labeled size 3.5, and a 1.1 mm orifice, size 3.0.[3]
- Machine rules come first. Active's guide for its Active 2.0 says to use foam cannon orifices of 1.25 mm or larger.[4] That rule is Active's, for that machine only.
- The plug variant is named. MTM notes some residential washers need its separately sold Low Profile QC plug.[3] Check that the cannon's plug seats in your wand.
- It is an exact brand and model in our catalog, and its store button shows only after a US "Ships from / Sold by" check.
Four approved cannons met this bar on 2026-10-16. The SIMPSON and Westinghouse cannons are not yet in our verified fact register, so their entries describe their role and send you to the maker's page.
1/4 in quick connector cannon with two orifices
MJJC Foam Cannon S V3.0 with 1/4 in quick connector adapter (QRFLSV3)
Pick it if: Wands with a 1/4 in quick-connect outlet
- Why it's here
- MJJC's Foam Cannon S V3.0 with 1/4 in quick connector (SKU QRFLSV3) comes with a 1.25 mm orifice installed and a 1.1 mm orifice included in the package.
- Watch out
- Use the orifice your machine maker allows: Active, for its Active 2.0, says 1.25 mm or larger, so the 1.1 mm spare is below its minimum for that machine. MJJC's Where to Buy page does not mention Amazon. Check that 'Ships from / Sold by' shows Amazon.com or MJJC. We cover the hardware only.
- Connection standard of each end (M22, 3/8 in QC, 1/4 in QC, NPT, garden-hose thread, brand bayonet)
- 1/4 in quick connector adapter
- Male or female end
- Not stated
- M22 bore (14 mm or 15 mm)
- Not stated
- Maximum PSI rating
- 725 PSI minimum; included orifices cover 1,305-2,175 PSI; MJJC's table runs to 4,931 PSI with an optional 1.65 mm orifice
Values are the manufacturer's specs unless marked.
1/4 in quick connector version of MJJC's larger cannon
MJJC Foam Cannon PRO V3.0 with 1/4 in quick connector adapter (QRFLPROV3)
Pick it if: Wands with a 1/4 in quick-connect outlet, where a larger bottle is wanted
- Why it's here
- MJJC sells the Foam Cannon PRO V3.0 in separate connector versions, including a 1/4 in quick connector version, and describes it as holding up to 1,200 ml, with an extra 28 mm thread and a wider bottle opening.
- Watch out
- MJJC's visible listings for the PRO V3.0 do not state the orifice size or a pressure range, so check them before you order. MJJC's Where to Buy page does not mention Amazon; check that 'Ships from / Sold by' shows Amazon.com or MJJC.
- Connection standard of each end (M22, 3/8 in QC, 1/4 in QC, NPT, garden-hose thread, brand bayonet)
- 1/4 in quick connector adapter
- Male or female end
- Not stated
- M22 bore (14 mm or 15 mm)
- Not stated
- Maximum PSI rating
- 725 PSI minimum; orifice table to 4,931 PSI
Values are the manufacturer's specs unless marked.
SIMPSON foam cannon
SIMPSON 80271 high pressure foam cannon, 1 L, 1/4 in QC plug, 1,600‑4,000 PSI
Pick it if: Owners who will confirm the connector and range on SIMPSON's page
- Why it's here
- SIMPSON sells this cannon in one version and states its connector, bottle and pressure range on its product page.
- Watch out
- We have not yet verified this part number's figures in our fact register, so we do not repeat them here. Read SIMPSON's page and match the connector to your wand and the range to your machine. On Amazon, check that 'Ships from / Sold by' shows Amazon.com or SIMPSON.
- Connection standard of each end (M22, 3/8 in QC, 1/4 in QC, NPT, garden-hose thread, brand bayonet)
- Standard 1/4 in QC plug, brass fittings
- Male or female end
- Plug (male)
- M22 bore (14 mm or 15 mm)
- Not stated
- Maximum PSI rating
- 1,600 PSI minimum to 4,000 PSI maximum
Values are the manufacturer's specs unless marked.
Westinghouse foam cannon
Westinghouse PWFC foam cannon for pressure washers, 1 L, 1/4 in QC, 3,600 PSI
Pick it if: Westinghouse owners who will confirm the connector on Westinghouse's page
- Why it's here
- Westinghouse sells this cannon in one version for its own washers and states its connector and rating on its product page.
- Watch out
- We have not yet verified its figures in our fact register, so we do not repeat them here. Check the connector against your wand's outlet before you order. On Amazon, check that 'Ships from / Sold by' shows Amazon.com or Westinghouse.
- Connection standard of each end (M22, 3/8 in QC, 1/4 in QC, NPT, garden-hose thread, brand bayonet)
- 1/4 in quick connect
- Male or female end
- Westinghouse calls it a 1/4 in female quick connect
- M22 bore (14 mm or 15 mm)
- Not stated
- Maximum PSI rating
- 3,600 PSI
Values are the manufacturer's specs unless marked.
Fit table
| Pick | Connector | Orifice | Bottle |
|---|---|---|---|
| MJJC S V3.0, 1/4 in QC version | 1/4 in quick connector | 1.25 mm installed, 1.1 mm included | Not stated here |
| MJJC PRO V3.0, 1/4 in QC version | 1/4 in quick connector | Not stated in the listings we read | Up to 1,200 ml, extra 28 mm thread |
| SIMPSON 80271 | See SIMPSON's page | See SIMPSON's page | See SIMPSON's page |
| Westinghouse PWFC | See Westinghouse's page | See Westinghouse's page | See Westinghouse's page |
MJJC describes the PRO V3.0 as holding up to 1,200 ml, with an extra 28 mm thread and a wider bottle opening.[1]
Where MJJC sells
MJJC's Where to Buy page directs shoppers to a country distributor list and does not mention Amazon or AliExpress.[5] On Amazon, check that "Ships from / Sold by" shows Amazon.com or MJJC.
Next
Questions
Which version should I buy?
The one whose connector matches your wand's outlet. MJJC sells its PRO V3.0 in a 1/4 in quick connector version and in versions for Kärcher K, AVA, Nilfisk/Gerni/Stihl, Bosch/Black+Decker and Lavor/Parkside machines.[1]
Which orifice should I use?
The one your cannon maker installs or your machine maker specifies. MJJC's S V3.0 QC version ships with 1.25 mm installed and 1.1 mm included; Active says its Active 2.0 needs 1.25 mm or larger.[2][4]
Do you recommend a soap?
No. We cover foam cannons as hardware only: the connector, the orifice and the bottle. We give no product, dilution or ratio.