Assuming you have appropriate adapters to transition from 1/4” to 3/8”, 3,100 PSI will remain unchanged.
NorthStar Nonmarking Pressure Washer Hose, 4000 PSI, 50ft. x 3/8in.

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- Durable, abrasion-resistant
- For hot or cold water applications
- Gray wrapped nonmarking cover with single wire braid
- Bend restrictors provide smooth water flow and no kinking at connections
- 3/8in. male NPT fittings coupled to 3/8in. straight-through industrial quick connects
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Description
Key Specs
Reviews
Q & A
Accessories
Warranty
Compare
Product Summary
What's Included
- (1) 50ft. pressure washer hose
HIGH-PERFORMANCE CLEANING
This pressure washer hose is suited for a BROAD RANGE OF CLEANING tasks, delivering powerful water flow for effective DIRT and GRIME REMOVAL on various surfaces
SAFE AND RELIABLE CLEANING TOOL
With its HIGH BURST RATIO and ability to withstand high water temperatures, this hose is designed for SAFE and RELIABLE OPERATION providing peace of mind along with superior cleaning power
CONVENIENT AND QUICK SETUP
Quick-connect fittings simplify the process of ATTACHING and DETACHING the hose from your pressure washer, SAVING TIME and REDUCING HASSLE in preparing for the job
BUILT TO LAST
The combination of its ABRASION-RESISTANTcover and single wire BRAID REINFORCEMENT makes this hose a durable option for both RESIDENTIAL and COMMERCIAL use
Features + Benefits

- Durable, abrasion-resistant
- For hot or cold water applications
- Gray wrapped nonmarking cover with single wire braid
- Bend restrictors provide smooth water flow and no kinking at connections
- 3/8in. male NPT fittings coupled to 3/8in. straight-through industrial quick connects
- 3:1 burst ratio
- Max. water temp: 250°F @ 4,000 PSI
Key Specs
| Attribute | Specification |
|---|---|
item# | 42945 |
Brand | NorthStar |
Manufacturer's Warranty | 1 month parts/1 month labor |
Ship Weight | 8.69 LB |
Diameter | 3/8 in |
| Attribute | Specification |
|---|---|
Length | 50 ft |
Max. PSI | 4,000 |
Color | Gray |
Material | Rubber |
Max. Temperature | 250 °F |
Reviews
Questions & Answers
Questions
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· 13 years ago
my 3100psi pressure came with a 30ft 1/4" hose. Will my water pressure be affected if i use a 50ft 3/8" hose ?
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WithPride· 6 years ago
Helpful?
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Bennington· 8 years ago
i added it to my 2500 and i dont notice a drop in pressue.
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Dan0311· 8 years ago
No. I use this same 3/8" with my Generac 3100 psi PW and I put a pressure gauge on the PW then again at the wand and noticed no decrease in pressure compared to the OEM 1/4" original hose it came with.
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ProductExpert26· 13 years ago
You can double your hose length at the same diameter without affecting the pressure. Changing the diameter of the hose will cause a little difference in pressure, but not significantly.
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· 8 years ago
Can the coupling ends be changed if don't fit my existing equip. Are they screwed on hose ends and if so, what size type threads.
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greyrangerrider· 6 years ago
purchase a coupling adapter to fit your needs.
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Lodestar· 8 years ago
You can change the fittings on the hose, but it may be better to change the fittings on your equipment to match the hose configuration.
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NorthstarExpert29· 8 years ago
The quick-connect couplers on this hose can be replaced. The threaded fittings on the hose are 3/8" NPT.
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· 11 years ago
Fittings
Can this hose be connected to a garden Water Tap and with what couplings?
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WithPride· 6 years ago
Not Advisable
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Bob731· 11 years ago
No
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NorthstarExpert11· 11 years ago
This pressure washer hose isn't intended to be connected to a water tap. Northern Tool doesn't carry fittings/adapters that would enable this hose to be connected to a water tap.
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· 15 years ago
Can this be connected to the standard gray 25 foot hose that comes with a North Star Pressure Washer, for a total of 75 feet
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WithPride· 6 years ago
Yes, sir
Helpful?
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Spiked· 10 years ago
Yes it can works great
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ProductExpert5· 15 years ago
This pressure washer hose will connect to any pressure washer hose that has the standard 3/8 inch quick couplers. This will connect to any of our 4000 PSI or less NorthStar Pressure Washers that come with the gray hose with black bend restrictors.
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· 13 years ago
what is this made of plastic or rubber
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Efelle· 11 years ago
Rubber. Very well built hose.
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ProductExpert35· 13 years ago
The hose is made of rubber.
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· 14 years ago
I need a hose with M22 fittings
Is this hose proper for as a replacement hose for a power washer hose that has M22 fittings.
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Dblocks· 11 years ago
No it is not, this is NPT or National pipe thread. But they do make adapters that can make this hose work.
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ProductExpert23· 12 years ago
This would not be the correct hose for your application. Assuming your washer has 22mm male connectors on both the gun and the pump, you would need a hose with two 22mm female connectors. See Below.
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· 9 months ago
I recently bought one of your Northstar 3600psi NS E300. It came with a 50’ hose. Would it work ok to use two 50’ pressure washer hoses end to end instead of buying a 100’ hose?
1 answer-
NorthstarExpert12· 9 months ago
As long as the fittings match, the hoses can be connected to provide a greater hose length.
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· 3 years ago
Are the M22 fittings on this hose 14mm or 15mm ID?
1 answer-
NorthstarExpert12· 3 years ago
This pressure washer hose has 3/8in. male NPT fittings coupled to 3/8in. straight-through industrial quick connects. It does not have M22 fittings.
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· 4 years ago
Does this hose connect too a #56614 spray gun?
1 answer-
NorthStarExpert38· 4 years ago
This hose would not connect to the 56614 spray gun. Please view spray gun item 43227.
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· 4 years ago
does this fit all north star pressure washers? I have a north star with honda engine....believe it is a 3000 - 3500 psi
1 answer-
NorthstarExpert7· 4 years ago
This is compatible with NorthStar hot or cold water models up to 4000 PSI.
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Warranty
Manufacturer's Warranty
1 month parts/1 month labor
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Specifications
3/8 in
1/4 in
1/2 in
3/8 in
50 ft
200 ft
300 ft
18 ft
4,000
4,400
4,000
4,000
Gray
Black
Green
Blue
Rubber
Thermoplastic
Thermoplastic
Rubber
250 °F
160 °F
160 °F
250 °F
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No
No
No
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51.6570 lb
3.5350 lb
-
-
3,600.0 x x in
216.0 x 0.625 x 0.625 in
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NorthStar Nonmarking Pressure Washer Hose, 4000 PSI, 50ft. x 3/8in.
Item # 42945
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