Can this item be used on a pressure washer with 3100psi ?

I would say this fitting would not be appropriate as the description does say it is good for operating pressures of up to 1200psi. There may be a brass version made heavier for use at higher pressure, or perhaps one made of stainless steel instead of brass. I am using it at very low pressure in a computer water cooling loop to adapt thread sizes where a smaller and lighter fitting was preferable for me. I would search for a fitting that states it is good for a 3100psi working pressure or higher, or you are taking a risk of serious injury should this fitting burst.

Which size fits a Schrader valve?

A Shrader valve is: 0.305" in OD, thread root diameter 0.302" in x 32 tpi (threads per inch). A Shrader valve is not a NPT thread. Try B09QMCF6BK.

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NPT Reducing Coupling Brass 1/4" Female x 1/8" Female, Hex Reducer Coupler Adapter Pipe Fitting 1200psi (Pack of 2)

Product ID: 369434493

Details

Brand
Legines
Colour
Brass
Item dimensions L x W x H
10 x 10 x 10
Material
Brass
Size
1/4" NPT x NPT

🔩1200psi max pressure

🧰Durable CA360/CA377 brass alloy

🛠️Dual NPT female threads 1/4" x 1/8"

£23.30

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Description

🔧 Connect with Confidence — Upgrade your fittings, upgrade your flow!

PREMIUM BRASS BUILD - Crafted from SAE-standard CA360/CA377 brass for superior corrosion resistance and strength
TRUSTED QUALITY PACK - Includes 2 robust couplings, backed by 4.6-star user satisfaction and industrial-grade reliability
PRECISION FIT GUARANTEE - Dual female NPT threads (1/4" x 1/8") ensure leak-tight, secure connections
VERSATILE COMPATIBILITY - Perfect for adapting different pipe sizes in air compressors, plumbing, and more
PRESSURE READY PERFORMANCE - Handles up to 1200psi for demanding industrial and home projects

The Legines NPT Reducing Coupling is a high-performance brass pipe fitting designed to connect male pipes of different sizes with 1/4" and 1/8" female NPT threads. Made from premium CA360/CA377 brass, it withstands pressures up to 1200psi and temperatures from -53°C to 121°C, offering superior durability and corrosion resistance. Ideal for industrial and home applications, this pack of two couplings ensures secure, leak-tight connections for efficient fluid or air flow control.

Specifications

ASIN	B07486QJKK
ASIN	B07486QJKK
Best Sellers Rank	#132,832 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,068 in Industrial Pipe Fittings
Brand Name	Legines
Color	Brass
Connector Type	Coupling
Customer Reviews	4.5 4.5 out of 5 stars (469)
Customer reviews	4.5 4.5 out of 5 stars (469)
Date First Available	1 February 2018
Exterior Finish	Brass
Is Discontinued By Manufacturer	No
Item Dimensions	10 x 10 x 10 centimeters
Item model number	3300*BA
Manufacturer	Legines
Manufacturer	Legines
Manufacturer Part Number	3300*BA
Material Type	Brass
Model Number	3300*BA
Number of Pieces	2
Product Dimensions	10 x 10 x 10 cm; 59 g
Size	1/4" NPT Female x 1/8" NPT Female
Thread Size	0.125 inches
Thread Type	NPT
Unit Count	2.0 Count

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£23.30

Duties & taxes included

In stock

Sold byAmazon UKDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to UK.

Secure transaction

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Join PRO →

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TrustScore 4.5 | 7,300+ reviews

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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