ROLL 4000 PSI 3/8"x500' BLACK NEPTUNE
ROLL 4000 PSI 3/8"x500' BLACK NEPTUNE
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- Item# 6713
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High Pressure Hose - Professional Grade
This high pressure hose is built for professional pressure washing contractors and commercial cleaning operations, with rated for 4000 PSI, 3/8" connection size. Designed for the demands of daily commercial use - not weekend homeowner projects. Available at Sun Brite Supply in Gaithersburg, MD - stocked and ready to ship.
The 4000 PSI rating handles the pressures of commercial-grade systems without exceeding safe operating limits. The 500' length suits most rig configurations and reach requirements. Every component at Sun Brite Supply is the same equipment our team has used and trusted across 30 years in the pressure washing industry. We don't stock consumer-grade parts with professional labels - if it's in our catalog, it's contractor-tested.
Where Contractors Use This High Pressure Hose
Application and Compatibility
High-pressure hose is the critical link between your machine and your work. A burst hose on a job site costs you the entire day plus cleanup. Match the hose PSI rating above your working pressure, and choose diameter based on GPM - 3/8" handles up to 5.5 GPM, 1/2" for higher flow machines. Non-marking cover prevents scuff marks on customer property. If you're not sure about compatibility, call (301) 519-9274 - we match parts to machines every day.
The performance gap between professional-grade and consumer-grade equipment shows up on every job. Contractors who invest in commercial components spend less on replacements, finish jobs faster, and deliver results that earn repeat business and referrals. That's the math that matters when you're running a pressure washing company - not just the upfront price tag.
Installation and Setup
Verify Compatibility
Check the specifications against your existing equipment. Thread sizes, pressure ratings, and flow capacities must match for safe operation.
Install According to Specs
Follow the manufacturer's installation guidelines. Use appropriate thread sealant on pipe connections. Don't overtighten fittings.
Test Under Pressure
After installation, test at low pressure first. Check all connections for leaks before running at full operating pressure.
Compatible With
Specifications
| Product Type | High Pressure Hose |
| Max Pressure | 4000 |
| Connection Size | 3/8" |
| Length | 500' |
| Ships From | Gaithersburg, MD |
Maintenance and Troubleshooting
Inspect your hose before every shift. Look for cover cracks, exposed wire braid, kinks, and swelling near the fittings. Any of these are failure warnings - a burst hose under 3,000+ PSI is a serious injury risk.
When to Replace vs. Repair
If this high pressure hose shows signs of wear but is still functional, a rebuild kit or replacement seals may extend its service life at a fraction of the full replacement cost. However, if you see cracks, cross-threading, severe corrosion, or complete failure under pressure, replacement is the safer and more economical choice. Call (301) 519-9274 and we'll help you decide. Always follow OSHA high-pressure fluid safety standards when working with high-pressure equipment.
Frequently Asked Questions
Need Help Choosing the Right Part?
30+ years of industry experience. We match parts to machines every day.
Why Buy From Sun Brite Supply?
Sun Brite Supply has served pressure washing contractors from our Gaithersburg, MD location since 2011. We stock the professional-grade parts and equipment you won't find at big box stores. Every in-stock order ships within 24 hours. Local customers can pick up the same day. Call (301) 519-9274 and talk to someone who knows this equipment - not a call center.