Wash and Decontamination
MJJC vs MTM Foam Cannon
The two cannons enthusiasts argue about, within $10 of each other. One publishes its bottle size, the other its brass body, and neither publishes a pressure or flow rating.
By Sawyer V. · Last verified 2026-09-10
We have not tested any of this. Everything below is compiled from published manufacturer specifications, and the arithmetic is printed so you can check it. This page carries affiliate links: if you buy through one we earn a commission at no extra cost to you, and it does not change the order of the picks. Full disclosure.
| # | Pick | Best for | Score | Price |
|---|---|---|---|---|
| 1 | MTM Hydro PF22.2 Foam Cannon MTM Hydro | The cannon people stop upgrading from | 2.4/10 | Check price on Amazon |
| 2 | MJJC Foam Cannon PRO V3.0 MJJC | A bigger bottle and a quick connect | 3.8/10 | Check price on Amazon |
No live price is currently verified, so every button here reads Check price rather than a number we cannot stand behind. Why we do it that way.
Side by side
| MTM PF22.2 | MJJC PRO V3.0 | |
|---|---|---|
| Price | $94.99 (Adam's Polishes) | $104.95 (McKee's 37) |
| Body | Italian nickel-plated brass, single cast | Stainless steel material, per MJJC; parts not specified |
| Orifice | Italian calibrated | Not published |
| Bottle | Not published | Up to 1,200 ml, translucent |
| Fittings | Included | 1/4 in quick connector included |
| Other | Not published | Anti-leakage cap |
| Maximum pressure | Not published | Not published |
| Flow rating | Not published | Not published |
What each maker chose to publish
MTM’s listing reads like plumbing hardware: an Italian nickel-plated brass body cast in one piece, a calibrated orifice, and fittings in the box. MJJC’s reads like a product update: a translucent bottle of up to 1,200ml, an anti-leakage cap, stainless steel material, and what they call a shaving cream foam guarantee, provided you use the right amount of a quality shampoo and a suitable pressure washer.
The pressure washer matters more
Both are pressure-washer cannons, and neither publishes the pressure or flow it is built for, so neither listing lets you match it to your machine. Is a foam cannon worth it covers the cannon question, and is a pressure washer worth it the machine behind it.
Who should buy which
- A brass body and a calibrated orifice: MTM PF22.2, $94.99.
- A bigger bottle and a quick connector in the box: MJJC PRO V3.0, $104.95.
Every pick, with the working
Each entry lists the specifications the maker publishes, the axis scores those specifications produce, and what you give up. Rows that read “Not published” are not omissions on our side: they are figures the maker will not commit to in writing, and they cost the product points on the transparency axis.
Our pickThe cannon people stop upgrading from
MTM Hydro PF22.2 Foam Cannon
MTM Hydro
$94.99 for an Italian nickel-plated brass body with a calibrated orifice, sold through Adam's alongside their own cannon. It is the most expensive item in this group and the one whose specification sheet reads like plumbing hardware rather than like a car accessory.
- Body
- Italian nickel-plated brass, single cast
- Orifice
- Italian calibrated
- Fittings
- Included
- Maximum pressure
- Not published
- Flow rating
- Not published
- Canister capacity
- Not published
- Warranty
- Not published
What it does well
- Nickel-plated brass single-cast body rather than the usual plated pot metal
- Calibrated orifice, which is the part that decides foam quality and the part cheap cannons vary on
- Fittings included, so it connects to a normal pressure washer out of the box
Who it is not for
- $94.99 is roughly double a competent cannon
- Needs a pressure washer; it will do nothing on a garden hose
- No maximum pressure or flow rating published on this listing
How this score was calculated
- Protection claimdropped
- Nothing in this category is bought on how long it lasts, so the axis is dropped and the other weights are re-normalized.
- Capabilitydropped
- MTM Hydro does not publish a figure for published maximum pressure on this product, so the axis is dropped and the remaining weights are re-normalized.
- Cost per ouncedropped
- This is not a consumable, so cost per ounce says nothing useful and the axis is dropped.
- Price against the ceiling0.0/10, weight 14%
- A listed $94.99 against the $90 one upgrade in this category realistically tops out at. A list price captured on the compile date, not a live price and not what you will pay.
- Written commitmentdropped
- MTM Hydro publishes no warranty term on this product's own page, so the axis is dropped. On a tool that is worth noticing, and it costs the product points on transparency instead.
- Spec transparency4.3/10, weight 18%
- 3 of the 7 specifications we went looking for are published by MTM Hydro. Every blank row below is something the maker will not put in writing, and it costs the product points here.
List price $94.99 per Adam's Polishes' own store, captured on the compile date below. Not a live price and not what you will pay — the button is where the real number is.
Specifications from MTM Hydro PF22.2 listing at Adam's Polishes, compiled September 8, 2026.
2A bigger bottle and a quick connect
MJJC Foam Cannon PRO V3.0
MJJC
$104.95 at McKee's 37 for MJJC's PRO V3.0 with a 1/4 inch quick connector, a translucent bottle of up to 1,200ml, an anti-leakage cap and what MJJC call stainless steel material. The listing publishes no pressure or flow rating.
- Bottle
- Up to 1,200 ml, translucent
- Fitting
- 1/4 in quick connector included
- Material
- Stainless steel, per MJJC; parts not specified
- Cap
- Anti-leakage
- Maximum pressure
- Not published
- Flow rating
- Not published
What it does well
- Bottle up to 1,200ml, published
- Quick connector included
- Anti-leakage cap
Who it is not for
- No maximum pressure or flow published
- $104.95, $9.96 more than the MTM
- Which parts are stainless is not specified
How this score was calculated
- Protection claimdropped
- Nothing in this category is bought on how long it lasts, so the axis is dropped and the other weights are re-normalized.
- Capabilitydropped
- MJJC does not publish a figure for published maximum pressure on this product, so the axis is dropped and the remaining weights are re-normalized.
- Cost per ouncedropped
- This is not a consumable, so cost per ounce says nothing useful and the axis is dropped.
- Price against the ceiling0.0/10, weight 14%
- A listed $104.95 against the $90 one upgrade in this category realistically tops out at. A list price captured on the compile date, not a live price and not what you will pay.
- Written commitmentdropped
- MJJC publishes no warranty term on this product's own page, so the axis is dropped. On a tool that is worth noticing, and it costs the product points on transparency instead.
- Spec transparency6.7/10, weight 18%
- 4 of the 6 specifications we went looking for are published by MJJC. Every blank row below is something the maker will not put in writing, and it costs the product points here.
List price $104.95 per McKee's 37, with quick connector, captured on the compile date below. Not a live price and not what you will pay — the button is where the real number is.
Specifications from McKee's 37's MJJC PRO V3.0 listing, compiled September 8, 2026.
No live price is currently verified, so every button here reads Check price rather than a number we cannot stand behind. Why we do it that way.
Questions people actually ask
+Is MJJC or MTM better?
+Does the MJJC foam cannon come with a quick connect?
+Do I need a pressure washer for either?
Where these figures came from
- MTM Hydro PF22.2 listing at Adam's Polishes — retrieved 2026-09-10
- McKee's 37's MJJC PRO V3.0 listing — retrieved 2026-09-10
Every figure on this page is a published manufacturer or authorized-retailer claim, not a measurement we made. How we research explains exactly what we did and did not do.