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

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

Product ID: 86245606

Details

Brand
Legines
Color
Copper
Connector Type
Reducer
Exterior Finish
Brass
Item dimensions L x W x H
3.94 x 3.94 x
Material
Brass

💪1200psi high pressure rating

🔩1/2" & 1/4" NPT female threads

🌡️-53 to 121°C temperature range

₩28780

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Description

🔧 Elevate your pipe game with precision and power!

TRUSTED BY PROS - Top-rated with 4.6 stars and proven reliability in industrial applications.
PRESSURE READY PERFORMANCE - Handles up to 1200psi—perfect for demanding air compressor setups.
WIDE TEMPERATURE TOLERANCE - Operates flawlessly from -53°C to 121°C, adapting to extreme conditions.
INDUSTRIAL GRADE BRASS BUILD - Crafted from CA360/CA377 brass for unmatched durability and SAE compliance.
PRECISION DUAL SIZE COMPATIBILITY - Seamlessly connect 1/2" and 1/4" NPT pipes with confidence.

The Legines Brass Reducing Coupling is a robust hex reducer adapter featuring 1/2" and 1/4" NPT female threads, engineered from premium CA360/CA377 brass. Rated for pressures up to 1200psi and temperature ranges from -53°C to 121°C, this pack of two fittings ensures reliable, high-performance connections for industrial and air compressor applications. Note: Not suitable for potable water use.

Specifications

ASIN	B07487LP8X
Best Sellers Rank	#29,049 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #689 in Pipe Fittings
Brand Name	Legines
Color	Copper
Connector Type	Reducer
Customer Reviews	4.5 4.5 out of 5 stars (478)
Exterior Finish	Brass
Item Dimensions	3.94 x 3.94 x 3.94 inches
Manufacturer	Legines
Manufacturer Part Number	3300*DB
Material Type	Brass
Number of Pieces	2
Size	1/2" NPT Female x 1/4" NPT Female
Thread Size	1/2" and 1/4"
Thread Type	NPT
Unit Count	2 Count

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TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

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₩28780

Duties & taxes included

In stock

Sold byAmazon South KoreaDelivered 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 South Korea.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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3 days ago

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5 days ago

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