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)

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

Product ID: 55766162

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

🔥Wide temp range -53°C to 121°C

🔩1200psi max pressure

🛠️Dual NPT female threads 1/4" x 1/8"

€ 13.39

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Description

🔧 Connect with Confidence — The Ultimate Brass Reducer for Pros

PACK OF TWO - Double your installation power with two high-quality couplings in one pack
TEMPERATURE TOUGH - Operates flawlessly from -53°C to 121°C, perfect for extreme environments
PREMIUM BRASS BUILD - Crafted from SAE-standard CA360/CA377 brass for durability and corrosion resistance
PRECISION FIT ADAPTER - Seamlessly connects 1/4" and 1/8" NPT male pipes with dryseal threads
PRESSURE READY PERFORMANCE - Handles up to 1200psi for industrial-grade reliability

The Legines NPT Reducing Coupling is a high-performance brass pipe fitting designed to connect 1/4" and 1/8" male NPT threaded pipes. Made from premium CA360/CA377 brass and meeting SAE standards, it supports pressures up to 1200psi and operates across a wide temperature range (-53°C to 121°C). Sold in packs of two, this hex reducer features dryseal threads for leak-resistant connections, ideal for demanding industrial and scientific applications (not for potable water use).

Specifications

ASIN	B07486QJKK
Best Sellers Rank	#31,299 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #822 in Pipe Fittings
Brand Name	Legines
Color	Copper
Connector Type	Reducer
Customer Reviews	4.6 4.6 out of 5 stars (476)
Exterior Finish	Brass
Item Dimensions	3.94 x 3.94 x 3.94 inches
Manufacturer	Legines
Manufacturer Part Number	3300*BA
Material Type	Brass
Model Number	3300*BA
Number of Pieces	2
Size	1/4" NPT Female x 1/8" NPT Female
Thread Size	0.125 inches
Thread Type	NPT
Unit Count	2 Count

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€ 13.39

Duties & taxes included

In stock

Sold byAmazon ItalyDelivered 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 Italy.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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