China Wholesale High Pressure Washer Gun

KAICHI supplies a wide range of pressure washer guns. These are also known as spray guns. They are essential for car wash and cleaning tasks. Our guns are built for professional use.
Choose from various designs. Standard guns offer reliable performance. Italian-style guns feature modern ergonomics. Some guns include a lance. Others are designed for foam application. We also offer heavy-duty and food-grade options.
Our guns handle pressure up to 5000 PSI. They feature durable materials and precision valves. Most models have a 1/4″ F outlet. Custom options are available. Contact us for wholesale orders.

G01 ST Spray Gun

G02 Italy Design Pressure Gun

G03 Classical Pressure Gun

G04 Spray Gun

G05 Classical Pressure Gun

G06 Italy Design Pressure Gun

G07 Italy Design Pressure Gun

G08 Pressure Gun

G09 Front Valve Pressure Gun

G10 Pressure Gun

G11 Spray Gun With Lance

G12 Plastic Pressure Gun

G13 Spray Gun With Lance

G14 Spray Gun With Lance

G15 Spray Gun With Lance

G16 Spray Gun With Lance

G17 Spray Gun With Lance

G18 Spray Gun With Lance

G19 Front Valve Pressure Gun With Lance

G20 Spray Lance With Extension

G21 Spray Gun

G22 Italy Design Spray Gun

G23 Long Wand Spray Gun

G24 Wand Spray Gun

G25 Pressure Spray Gun

G26 Pressure Spray Gun

G27 Spray Gun

G28 Spray Gun With Foam Nozzle

G29 Spray Gun

G30 Heavy Duty Wash Down Gun

G32 MV925 Spray Gun

G33 Pressure Gun With Nozzle Holder

G34 9MM PlN Pressure Gun

G35 8MM PIN Pressure Gun

G36 Yili Pressure Gun

G37 Food Gun

G39 Lavor Gun

G34 9MM PlN Pressure Gun

G40 Pressure Gun With Nozzle Holder

G42 Steam Gun

G43 Small Pressure Gun

G44 Food Gun

G13 Spray Gun With Lance

G14 Spray Gun With Lance

G15 Spray Gun With Lance

G16 Spray Gun With Lance

G17 Spray Gun With Lance

G18 Spray Gun With Lance

G19 Front Valve Pressure Gun With Lance

G20 Spray Lance With Extension

G21 Spray Gun

G22 Italy Design Spray Gun

G23 Long Wand Spray Gun

G24 Wand Spray Gun

G25 Pressure Spray Gun

G26 Pressure Spray Gun

G27 Spray Gun

G28 Spray Gun With Foam Nozzle

G29 Spray Gun

G30 Heavy Duty Wash Down Gun

G01L1102NS1203 Pressure Gun

G32L1101NH06 Pressure Gun

G34 9MM PlN Pressure Gun

G35 8MM PIN Pressure Gun

G36 Yili Pressure Gun

G37 Food Gun

G39 Lavor Gun

G40 Pressure Gun With Nozzle Holder

G34 9MM PlN Pressure Gun

G42 Steam Gun

G43 Small Pressure Gun

G44 Food Gun

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Frequently Asked Questions

1. What is the difference between a pressure washer gun and a spray gun?

A pressure washer gun and a spray gun refer to the same tool — the handheld trigger device that controls the flow of high-pressure water in a car wash or cleaning system. “Pressure washer gun” is the more common term in professional car wash equipment, while “spray gun” is often used interchangeably, especially in retail and DIY markets. At KAICHI, both terms describe our G01–G44 series, which range from standard trigger guns to Italian-style ergonomic designs.

2. What PSI rating do I need for a car wash pressure gun?

It depends on your pump and application. For most self-serve car wash bays and professional detailing, a gun rated at 4,000–5,000 PSI covers the widest range of uses. Our G01, G03, G06, G09, G10, and G21 models handle 5,000 PSI and above, making them suitable for heavy-duty car wash systems. For lighter cleaning tasks or household use, models rated at 2,200 PSI (such as the G12–G19 lance guns) are sufficient.。

3. What inlet and outlet sizes do KAICHI pressure washer guns use?

Most KAICHI pressure guns feature a 1/4″ F outlet, which is the industry standard for car wash and pressure cleaning applications. Inlet options vary by model:

M22 × 1.5 — common on G10, G18, and G40
M14 × 1.5 — used on G12, G14, G19, and G44
1/4″ F or 1/4″ QRC — available on several models including G23–G25 and G34
8mm or 9mm pin inlets — for Nilfisk, Bosch, Stihl, Yili, and AR compatibility

If you need a specific thread or quick-connect fitting, KAICHI offers custom options.

4. Are these pressure washer guns compatible with Karcher, Nilfisk, or Bosch machines?

Yes. Several KAICHI models are designed as direct replacements or upgrades for major brands:

G11 — Karcher style
G16, G17, G19 — Nilfisk / Bosch / Stihl QC hose fitting
G33 — Black & Decker inlet
G34 — AR / Bosch / Stihl / Yili inlet
G35, G36, G42 — Yili QC
G39 — Lavor gun

5. What materials are used in KAICHI pressure washer guns?

Our guns are built with durable metal bodies and precision internal valves for professional use. Key material features include:

Stainless steel or brass internal components for corrosion resistance
Ceramic valves on models like the G26, offering better wear resistance than standard valves
Heavy-duty housings on models such as the G30 and G32, designed for continuous commercial operation

The G37 and G44 food-grade guns use materials suitable for food processing and sanitary cleaning applications.

6. Do you offer pressure washer guns with foam function or lance?

Yes. Several models combine spray and foam capabilities:

G27 — dual outlet: one for spray nozzle, one for foam
G28 — spray gun with foam nozzle
G01L1102NS1203 — spray gun with straight lance for foam production
G20 — spray lance with extension
G11, G13–G19 — spray guns with lance

These are popular for car wash operators who want one tool for both rinsing and foam application.

7. What is the maximum temperature these pressure guns can handle?

Most KAICHI pressure washer guns are rated for up to 150°C (302°F). The G40 model is rated for 200°C, making it suitable for steam or high-temperature cleaning applications. The G12–G19 lance guns are rated for 50–60°C, which is appropriate for standard car wash and light cleaning use. Always check the individual model specification before ordering for high-temperature applications.

8. How do I maintain a pressure washer gun to extend its life?

Basic maintenance for a pressure washer gun includes:

Rinse after use — flush the gun with clean water to remove chemical residue
Check seals and O-rings — replace worn seals promptly to prevent leaks
Lubricate the trigger mechanism if recommended by the manufacturer
Store properly — drain water before storage, especially in freezing conditions
Avoid over-pressurizing — stay within the rated PSI to prevent internal damage

KAICHI guns are designed for serviceability, and we supply replacement seals, valves, and trigger parts.

9. Can I order pressure washer guns in wholesale quantities?

es. KAICHI is a factory-direct supplier, not a trading company. We support:

Wholesale and bulk orders for car wash operators, distributors, and brand owners
Mixed-model containers — combine different gun models in one shipment
OEM & ODM — custom logo, color, packaging, and labeling
Sample orders — available for first-time buyers to test quality before bulk purchase

MOQ varies by model. Contact us for details.

10. What is the lead time and shipping method for pressure washer gun orders?

Lead time depends on order quantity and customization requirements. Standard orders typically ship within 15–30 days after deposit confirmation. Custom OEM orders may require additional time for tooling and packaging. We offer FOB, CIF, and DDP shipping terms, and can work with your freight forwarder or arrange logistics for you.

11. Do KAICHI pressure washer guns come with a warranty?

Yes. KAICHI provides a one-year warranty against manufacturing defects on all pressure washer guns. Wear parts such as seals and O-rings are consumables and are not covered under warranty, but we supply replacement parts at factory prices. Our technical team is available for troubleshooting and parts recommendations.

12. Can I get a sample before placing a bulk order?

Yes. We offer 1–5 unit sample orders for first-time buyers. This allows you to test the gun’s performance, compatibility, and build quality before committing to a wholesale order. Sample costs and shipping can be credited toward your first bulk order in some cases — contact us for details.

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