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Bigboi Water Blaster Connections Guide (Upgrade Hose + Foam Cannon Setup)
If you’ve purchased a Bigboi water blaster and want to upgrade your setup, you’ve probably realised something quickly:
The fittings and connections can be confusing.
There’s very little official information from Bigboi on exact thread sizes and compatibility, and different models can vary slightly. We’ve worked directly with customers using Bigboi machines and tested multiple setups to figure out what works — and we now stock the fittings that make it easy.
This guide will show you:
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How to connect a foam cannon to a Bigboi
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How to upgrade to a flexible anti-kink hose
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What fittings you need (and why)
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The easiest “done-for-you” upgrade option
⚠️ Important Note Before You Start
Bigboi does not publish full connection specifications, and while we’ve tested multiple machines:
Please check your own machine before ordering.
There may be variations between models.
If you try this setup, let us know what worked for your machine — we’ll keep improving this guide to help others.
Connecting a Foam Cannon to a Bigboi
If you want to use a foam cannon like the Rockcar Stealth Blackout Edition, you’ll need the correct adapter.
✅ What you need:
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Rockcar Stealth Foam Cannon
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Bigboi-compatible adapter
👉 Required adapter:
Less Common Quick Adapter for Foam Cannons to 1/4 Quick Release
This adapter allows your foam cannon to connect properly to your Bigboi trigger.
This Adapter: BigBoi and others, less Common Quick Adapter for Foam Cannons to 1/4 quick release
Why this matters
Bigboi uses a less common quick connect style, so standard foam cannon fittings often don’t fit out of the box.
This adapter solves that.
Upgrading Your Bigboi Hose (Highly Recommended)
The standard Bigboi hose works — but it’s stiff, holds memory, and can be frustrating to use.
Upgrading to a Rockcar Flexible Premium Hose makes a huge difference:
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Anti-kink design
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Much more flexible
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Easier to move around the car
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Feels more “professional”
✅ Recommended hose:
Rockcar Flexible Premium Water Blaster Hose (10m, M22 14mm)
How to connect it to your Bigboi
At the machine end:
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Unscrew the brass quick connect fitting on your Bigboi
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Underneath, you’ll find an M22 fitting
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The Rockcar hose connects directly — no adapter needed
At the trigger end:
To connect the hose to your existing Bigboi trigger:
You’ll need:
Optional upgrade (recommended)
If you want quick-connect functionality on both ends:
This gives you:
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Fast disconnect at both ends
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Easier storage
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Cleaner setup
The Better Option (Recommended Setup)
If you want the best experience, we recommend upgrading more than just the hose.
Go for a full upgrade kit that includes:
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Rockcar Flexible Hose
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Rockcar Short Trigger Gun
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Swivel base (prevents hose tangling)
Link to kit: Upgrade Kit - Professional Trigger, Flexible Kink resistant 10m hose, adapter and 5 ends.
Why this setup is better
The short trigger + swivel makes a big difference:
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Easier to control
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Less wrist fatigue
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Hose doesn’t fight you
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Much smoother washing experience
Pro Tip
Flexible hoses get even better after use.
Once they’ve:
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Been stretched out
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Warmed in the sun
They become noticeably more flexible and easier to handle.
Complete Foam Cannon Kit Setup for Bigboi
If you want everything sorted in one go, this is the easiest option:
- Bigboi hose and trigger upgrade kit with flexible rockcar hose.
- (Optional) Rockcar Switch to allow you to flick between foam and water quickly and easily.
- (Optional) Flexible gravity hose upgrade for the Rockcar stealth foam cannon with stainless steel filter gravity ball and bright green flexible wide diameter hose. Keeps the hose at the bottom of the foam cannon to make it easy as the water level in the foam cannon gets low (trim to length).
Why this kit works so well
Rockcar Stealth Foam Cannon
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Thick, shaving-cream foam
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Adjustable spray pattern
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Reliable and consistent
Autostolz Snow Foam
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Extremely high foaming
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Long dwell time
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High lubrication (reduces scratches)
This combination gives you:
Maximum foam, better cleaning, and safer washing
Common Questions
What fitting does Bigboi use?
Typically:
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M22 (under the quick connect at the machine)
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Non-standard quick connect at the trigger
Do I need an adapter for the hose to connect to the machine?
No — the Rockcar hose connects directly to the M22 fitting once the brass connector is removed.
Do I need an adapter for the hose to connect to the bigboi trigger?
yes you need this adapter.
Do I need an adapter for the rockcar stealth foam cannon to connect to the bigboi trigger?
Yes, you need this adapter
Why doesn’t my foam cannon fit?
Because Bigboi uses a less common quick connect — you need the correct adapter.
Final Recommendation
If you want the simplest and best setup:
👉 Go with:
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Rockcar Flexible Hose
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Rockcar Short Trigger with swivel
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Rockcar Stealth Foam Cannon
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Correct Bigboi adapter
- Autostolz Snow Foam
This gives you a complete professional-level setup that’s easier to use and delivers better results.
Help Us Improve This Guide
Because Bigboi doesn’t publish full specs:
👉 If you’ve tried this setup, let us know what worked with your machine.
We’ll keep updating this guide to help others get the right fittings first time.
Special thanks to Ben Highlands from Christchurch Vehicle Cut and Polish in Christchurch for bringing in his Bigboi water blaster and helping me check all the fittings to get this right. Thanks Ben, appreciate your support!
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