Foam Cannons & Sprayers

Foam Cannons, Snow Foam Lances & Sprayers for Pre-Wash & Contactless Washing

Professional foam cannons, iK sprayers, snow foam lances, and accessories for pre-wash and contactless washing. A thick blanket of snow foam softens and lifts grit before your wash mitt ever touches the paint — the easiest way to prevent wash-induced swirl marks. This collection covers every setup: pressure-washer cannons like the TDS Foam Cannon Pro V2.0, hand-pump foamers from Koch-Chemie that need no pressure washer at all, and pro-grade iK sprayers for every other chemical in your arsenal.

We also stock the parts that keep your foam thick wash after wash — replacement bottles, pickup tubes, and orifice nozzles for the That Detail Shop cannons. Pair any cannon here with a high-foaming car wash soap or dedicated snow foam for dense, clinging suds from any gas or electric pressure washer.

What Is a Foam Cannon?

A foam cannon (also called a snow foam lance) quick-connects to your pressure washer lance, draws soap solution from its bottle, and mixes it with high-pressure water and air through an internal mesh filter to blast out thick, clinging foam. Left to dwell a few minutes, the foam loosens and encapsulates dirt so it rinses off — or slides off under your mitt — without grinding across the clear coat. That's the heart of a contactless pre-wash: most of the abrasive grit is gone before anything touches the paint, which is why detailers who care about swirl-free finishes foam first, every wash.

Foam Cannon vs. Foam Gun vs. Pump Foamer

All three lay down foam — the difference is the water source and how thick the foam gets:

Foam cannon (pressure washer): The thickest, longest-clinging foam — the best pre-wash, period. Top picks: the TDS Foam Cannon Pro V2.0, the TDS Apex Foam Cannon, the budget-friendly TDS Pro V1.0, and the Foam X by The Detailer Tools.
Foam gun (garden hose): Screws onto a standard hose — no pressure washer needed. The foam is lighter and runs off faster, but it's still a big upgrade over a bucket alone. Grab the G5 Foam Gun if you're hose-only.
Pump foamer (no hookup at all): Hand-pressurized foamers like the Koch-Chemie DPZ Venus Super Foamer 2L and the any-angle DPZ Venus Pro+ Super 360 lay down foam anywhere — ideal for mobile rigs and shops without a pressure washer at every bay.
Trigger & pump sprayers (chemicals): For everything that isn't soap — APC, iron remover, dressings — pro-grade iK sprayers like the 360-degree iK Multi Pro 2.5 360 and the iK Sprayer Bottle Multi TR1 handle daily dilution duty.

Pressure Washer Requirements: PSI & GPM

Foam cannons work with most gas and electric pressure washers in the roughly 1,000–3,000 PSI range with about 1.2–2.0 GPM of flow — the sweet spot is around 1,800–2,000 PSI and 1.4–1.6 GPM. Thickness depends on the balance of pressure and flow, not raw power: high PSI with weak flow makes thin foam; high flow with low pressure wastes soap. On a lower-GPM electric washer, the TDS 1.1mm Orifice Nozzle concentrates the flow — the cheap fix that turns watery output into proper snow foam.

Parts, Bottles & Accessories

Cannons are simple machines with cheap wear items. Keep a spare pickup tube on hand, add a TDS Pro V2.0 spare bottle to pre-mix a second soap, and tune output with the 1.1mm orifice. For iK sprayers, the iK Bottle TR1 keeps a labeled bottle for each chemical.

Quick Guide: Choose the Right Foam Cannon or Sprayer

Your Goal	Best Pick	Why
Thickest snow foam from a pressure washer	TDS Foam Cannon Pro V2.0	Our flagship cannon — dense, clinging foam on gas or electric washers
Outfit two rigs (or run two soaps)	TDS Pro V2.0 (Double)	Two-cannon bundle — keep one loaded per soap or per vehicle bay
First foam cannon on a budget	TDS Foam Cannon Pro V1.0	The proven original — real snow foam at an entry-level price
No pressure washer, still want foam	Koch-Chemie DPZ Venus Super Foamer 2L	Hand-pump foamer lays down foam with zero hookups
Spray chemicals at any angle	iK Multi Pro 2.5 360	Pro pump sprayer with 360° operation for APC, degreaser, and decon work
Thin foam on an electric washer	TDS 1.1mm Orifice Nozzle	Smaller orifice thickens foam on lower-GPM machines
Spares to keep foaming	TDS Pro V2.0 Bottle & Replacement Tube	Cheap wear parts beat replacing the whole cannon

How to Use a Foam Cannon (Contactless Pre-Wash, Step-by-Step)

Mix your solution. Add 2–4 oz of a high-foaming car wash soap or dedicated snow foam to the cannon bottle, then top it off with warm water — warm water noticeably improves foam.
Connect the cannon. Quick-connect it to your pressure washer lance. Most washers between roughly 1,000 and 3,000 PSI foam well — see the PSI & GPM notes above if yours runs thin.
Dial it in. Use the top knob to adjust the soap-to-water mix and the nozzle to set the fan pattern. Test on a lower panel until the foam clings instead of sheeting off.
Foam top to bottom and let it dwell. Cover the vehicle and give the foam 3–5 minutes to loosen dirt. Work in the shade and never let foam dry on the paint.
Rinse — or do your contact wash. For a maintenance clean, pressure-rinse top-down. For anything more, follow with a two-bucket wash using a plush wash mitt while the surface is still lubricated.
Dry and maintain the cannon. Dry with a twisted-loop drying towel, then run clean water through the cannon so soap doesn't crust in the mesh and pickup tube.

Foam Cannon FAQ

Do I need a pressure washer to use a foam cannon?

For a true foam cannon, yes — it relies on pressure-washer flow to whip soap into thick foam. No pressure washer? You still have options: the G5 Foam Gun runs on a garden hose, and hand-pump foamers like the Koch-Chemie DPZ Venus Super Foamer need no water hookup at all.

How much soap do I put in a foam cannon?

Start with 2–4 oz of concentrated soap in the bottle, topped off with warm water: about 2 oz for a maintenance wash on a coated car, 3 oz for average dirt, 4 oz for a heavily soiled vehicle. Every soap foams differently, so check the label and see our Foam Cannon Soap Guide for product-by-product dilution ratios.

Can I use any car wash soap — or dish soap — in a foam cannon?

Use a high-foaming automotive shampoo or dedicated snow foam — never dish soap, which strips wax and sealants. Purpose-made foams like Koch-Chemie Gentle Snow Foam and CarPro Lift cling and clean without harming protection. Browse all car wash soaps.

Does a foam cannon replace hand washing?

On lightly dirty or coated vehicles, a foam-and-rinse contactless wash can be enough. Otherwise treat foam as the pre-wash: it removes the loose, abrasive grit so your mitt-and-two-buckets contact wash deals only with the bonded film — that order is what keeps swirls out of your paint.

Why is my foam cannon spraying watery foam?

The usual suspects: too little soap (try 3–4 oz and warm water), a low-flow pressure washer (swap in the 1.1mm orifice), or a clogged mesh filter and pickup tube — rinse the cannon after every use, and replace a gunked line with the TDS Replacement Tube.

Is snow foam safe on ceramic-coated cars?

Yes — a foam pre-wash is the ideal maintenance routine for coated cars because it cleans with minimal contact. Use a pH-neutral foam at a lighter mix (about 2 oz per bottle) like Koch-Chemie Gentle Snow Foam, and skip harsh alkaline foams unless you're intentionally stripping old wax.