Spraying Systems 1/8” Washjet MEG 15° 4000psi

2025-12-18T11:39:23-08:00

Price: 21.00

Description Specs & Engineering Applications

Chiseling Impact | 1/8" NPT Configuration

The Spraying Systems WashJet® 1/8" MEG 15° Nozzle acts as a liquid scraper. By fanning the stream just enough to create a "blade" of water, it delivers high-impact chiseling force perfect for stripping paint, grease, and chewing gum.

⚠️ Mosmatic / Surface Cleaner Standard: This is the premium OEM-style replacement nozzle for Mosmatic surface cleaners that utilize 1/8" spray bars. The 15° angle provides the aggressive "cutting" action required for professional concrete cleaning.

⚠️ Check Your Threads: 1/8" NPT

Not for standard wands. This nozzle has a smaller 1/8" NPT thread. It fits surface cleaner arms and specialty lances, not standard 1/4" pressure washer lances.

✅ The WashJet® Advantage

Constructed from Hardened 404 Stainless Steel, this nozzle resists both high-pressure erosion and chemical corrosion. This ensures your chiseling fan pattern remains sharp and effective long after standard stainless tips have washed out.

⚠️ Precision Sizing Required

Too Small: Your unloader valve will bypass water to limit pressure. This reduces the flow rate at the tip, killing your cleaning efficiency.

Too Big: System pressure drops drastically, significantly reducing your impact force and cleaning power.

Use the Smart Calculator below to find your exact match.

📐 Nozzle Size Calculator

Enter your machine's specs to generate the recommended orifice size.

Using a Surface Cleaner? (Mosmatic/etc)
(Check this box to split the flow for 2-arm bars)

Flow (GPM)
2.0 GPM

2.5 GPM

3.0 GPM

3.5 GPM

4.0 GPM

4.5 GPM

5.0 GPM

5.5 GPM

6.0 GPM

8.0 GPM

10.0 GPM

12.0 GPM

Pressure (PSI)
2000 PSI

2500 PSI

3000 PSI

3500 PSI

4000 PSI

5000 PSI

Exact Calculation:
# 2.00
Recommended Orifice Size: # 2.0
⚠️ IMPORTANT: This size is PER NOZZLE.
Buy TWO of these.

Gas HP
14.5 HP

Elec HP
11.0 HP

Hyd HP
9.3 HP

Disclaimer: This calculator is a guide only. Always verify your equipment's specific requirements before installing high-pressure components.

Note: When calculating for Spray Bars, we round DOWN to maintain rotation speed.

Technical Specifications

Model | Spraying Systems WashJet® MEG
Thread Type | 1/8" NPT Male
Material | Hardened 404 Stainless Steel
Rated Pressure | 4,000 PSI
Spray Angle | 15° Chiseling Fan

Spray Angle Color Guide

Note: WashJet MEG nozzles are unpainted stainless steel. The list below references the matching Quick Connect industry standard colors.

🔴 0° (Red): Cutting / Hydro-Excavation.

🟡 15° (Yellow): Chiseling / Paint Stripping / Heavy Grease.

🟢 25° (Green): Flushing / Surface Cleaners.

⚪ 40° (White): Washing / Windows / Siding.

Professional 1/8" 15° Use Cases:

Surface Cleaners (Mosmatic / Old Whisper Wash): The 15° angle is the factory standard for Mosmatic surface cleaners. It provides the "chiseling" edge needed to clean porous concrete and is considered a High-Impact upgrade on other surface cleaners with an 1/8" bar.

Paint Stripping: The blade-like spray pattern lifts peeling paint effectively.

Grease Removal: Ideal for scraping heavy grease deposits from machinery using a short 1/8" lance.

💧 Installation Tip

Because 1/8" threads are smaller and often subjected to high vibration (or heat), Thread Tape (Teflon) or a medium-strength threadlocker (Blue Loctite) is highly recommended to prevent seizing or loosening during operation.