MJJC Foam Thickness Adjustment Knob
R 135.00
- Precise foam density control per wash
- Compatible with MJJC Foam Cannon bottles
- Built from durable, long-lasting materials
- Instant adjustment with a single twist
- Controls foam thickness with a single twist
- Instant adjustment between thick and light foam
- Direct fit on MJJC Foam Cannon bottles
- Free shippingOn orders over R1000
- Fast delivery2-4 business days
- Safe paymentEncrypted checkout
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Total price R 880.00
Precision Foam Control
Set your foam density exactly where you need it
The MJJC Foam Thickness Adjustment Knob puts foam output in your hands. One twist separates a thick, panel-clinging blanket from a light rinse layer - so you're not fighting a fixed setting every time the job changes.
Why It Works
Every wash, dialled in
Four reasons the adjustment knob earns its place in your kit.
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Variable Foam Density
Shift between thick, clingy foam and a lighter layer with a single twist of the knob.
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Instant Adjustment
No tools, no dismantling - change your foam output on the fly between passes.
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Direct MJJC Fit
Engineered to seat correctly on MJJC Foam Cannon bottles without adapters or modification.
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Durable Construction
Built from hard-wearing materials that hold up to repeated use and foam chemical exposure.
How It Compares
MJJC Adjustment Knob vs. a fixed-setting cannon
Many foam cannons ship with a fixed or limited adjustment mechanism. Here's how a dedicated, precision-adjustable knob stacks up for detailers who need flexibility across different wash tasks.
| Feature | DetailerSA | Alternative |
|---|---|---|
| Variable foam thickness control | Yes | No |
| On-the-fly adjustment between passes | Yes | No |
| Direct MJJC cannon compatibility | Yes | Yes |
| Replaceable without buying full cannon | Yes | No |
| Works with all pressure washer brands | No | Yes |
Built to Last
Durable enough for professional, repeated use
Constructed from hard-wearing materials, this knob is built to take the chemical exposure and frequent adjustment cycles that professional detailing demands. It fits directly onto MJJC Foam Cannon bottles - no adapters, no fuss.
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Questions
Frequently asked
Which MJJC foam cannons is this knob compatible with?
This knob is designed to fit MJJC Foam Cannon bottles. If you're unsure whether it suits your specific MJJC cannon model, check the bottle thread and knob recess dimensions against your existing unit before ordering.
How do I install the adjustment knob?
Installation is straightforward and requires no tools. The knob threads or clips directly onto the foam cannon bottle in place of the existing one. Seat it firmly and you're ready to go.
How does adjusting the knob change the foam output?
Turning the knob restricts or opens the air-to-solution ratio inside the cannon. Closing it down produces thicker, denser foam with more cling. Opening it up delivers a lighter, wetter foam that rinses away quickly - useful for pre-rinse passes or when foam volume matters more than cling time.
Can I use this knob with any snow foam lance or cannon brand?
No. This knob is designed specifically for MJJC Foam Cannon bottles. It is not guaranteed to fit lances or cannons from other brands, as thread sizes and recess dimensions vary between manufacturers.
What foam thickness setting should I use for a decon wash?
For a full decon wash, you want the foam as thick and clingy as possible so it holds contact time on the paint. Turn the knob towards its most restricted position and adjust from there based on your foam concentrate's dilution ratio. Thicker foam also helps pre-soak fallout removers and tranfer film.
What foam setting works best for a quick rinse or maintenance wash?
A lighter, more fluid foam works better for quick rinses - it covers the panel fast and releases easily. Open the knob up from the full-closed position a turn or two until you get the consistency you need.
Is this knob durable enough for daily professional use?
Yes. It is built from durable materials intended to handle the repeated use and chemical exposure that comes with professional detailing. Rinse it after each session and it should give you long service life.
Do I need to buy the full foam cannon to get this adjustment feature, or can I just replace the knob?
If you already own an MJJC Foam Cannon and the knob is damaged, worn, or lost, you can purchase this knob on its own as a direct replacement. There's no need to replace the entire cannon assembly.