Siapupy

Siapupy Car Wash Foam Gun — Hose-Mounted Foam Cannon, 3/4" & 5/8" Brass Joint, Adjustable Foam Dial

High-performance automotive accessories made for confident daily results

$31.98

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Why customers choose NorthTrail Auto

Siapupy Car Wash Foam Gun is an adjustable, hose-mounted foam cannon that produces thick, clinging suds for home car washing and garden spraying.

If you want a faster, cleaner way to pre-soak vehicles and outdoor surfaces without buying a pressure washer, this foam sprayer connects directly to common garden hoses and lets you control foam density with a simple dial. Built with a durable brass joint and compatible with 5/8" quick-connect fittings and 3/4" American-standard hoses, the Siapupy soap gun mixes detergent and water into a rich foam that helps lift dirt before rinsing.

How do I adjust the foam strength for different jobs?

Use the adjustable foam dial on the nozzle to change soap-to-water ratio and the thickness of foam. Turn the screw to increase or decrease the amount of detergent delivered, so you can go from light rinsing to a thick, clingy foam for heavy grime.

  • Dial ranges provide variable dilution for light, medium, or heavy foam.
  • Works with most car shampoos and liquid detergents; test concentration first.
  • No internal motor — water line pressure controls spray force.

Will this fit my garden hose or quick-connect system?

The sprayer is designed to attach to both 5/8" quick-connect fittings and 3/4" American-standard male-thread garden hoses. For the 3/4" thread, a wrench is needed to remove a brass component so it will mate correctly with your hose.

  • Includes 5/8" quick-connect compatibility out of the box.
  • 3/4" threaded connection works after removing brass part with a wrench.
  • Brass joints increase durability and resist leaks under typical garden pressures.

How does the Siapupy foam gun help protect paint and delicate surfaces?

The device applies a thick layer of detergent-rich foam that clings to surfaces, loosening dirt and grit so you can rinse with minimal scrubbing. Because the unit operates at low-pressure from the hose, it avoids the high force that can damage paintwork when misused.

  • Clinging foam reduces the need for abrasive scrubbing.
  • Low-pressure delivery minimizes risk compared with pressure washers.
  • Adjustable dilution prevents oversaturation with harsh chemicals.

What else should I know before using this foam sprayer?

Read the included instruction guide before first use to ensure proper assembly and safe operation. The gun does not generate pressure itself — water pressure from your hose determines spray range and force, so check hose flow and test settings on a small area first.

  • Follow the manual for assembly, detergent recommendations, and maintenance.
  • Test foam concentration and rinse thoroughly after application.
  • Store indoors when not in use to protect seals and brass fittings.

Who is this for? The Siapupy Car Wash Foam Gun is ideal for car enthusiasts, homeowners, and detailing hobbyists who want a simple, budget-friendly way to pre-soak vehicles and outdoor equipment. It suits anyone with a compatible garden hose who prefers gentler, foam-first cleaning over aggressive pressure-washing — especially owners of cars, bikes, ATVs, patios, and outdoor furniture looking for an efficient, easy-to-use foam application tool.

FAQ

Q: Does the foam gun need a pressure washer?

A: No. It attaches to a garden hose and uses water line pressure; it does not require a pressure washer.

Q: Which hose fittings are compatible?

A: Compatible with 5/8" quick-connect and 3/4" American-standard male-thread hoses (wrench removal of brass part required).