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Pressure Washer Quick Coupler, Female Half, 1/4 Inch Coupling, 1/4-18 Female NPT

Coupling Size 1/4	Brand Pressure-Pro	Brand Pressure-Pro	Pack Size 1.00	UOM EA	Materials Brass	Pressure Rating 4000	Supplier Part Number 654324	Thread 1 1/4-18	Alternate Part Numbers Alternate Part Number C1BK22, Alternate Part Number DS2STF2-B, Alternate Part Number MI-07019770, Alternate Part Number MINO-00358X00077	Product Weight 0.17 lbs

Product Questions & Answers 3

Product Questions & Answers

got a pressure washer that takes a 1/4 inch coupler with female NPT threads, this the right socket half to match up with it?

Question by: Connie C on Jun 26, 2025, 8:10 PM

For a 1/4-18 female NPT connection, yes, this is the correct socket half. It carries a 4000 psi pressure rating, so it holds up fine in high-pressure washing setups. The brass construction keeps it durable without adding a lot of weight, and the female NPT thread gives you a secure, leak-resistant fit when properly torqued down.

Answer by: Customer Support on Jun 28, 2025, 2:40 PM

What size is the threaded part on this coupler?

Question by: Rod S on Oct 1, 2025, 11:11 AM

The threaded connection is 1/4-18 Female NPT.

Answer by: Customer Support on Oct 2, 2025, 11:24 AM

trying to replace a worn out socket half on my pressure washer line. is this the female side with 1/4-18 female npt threads?

Question by: Ralph M on Oct 17, 2025, 9:08 PM

For a replacement socket half, this one matches a female quick coupler in a 1/4 inch coupling size and it has a 1/4-18 female NPT threaded connection.

Answer by: Customer Support on Oct 19, 2025, 7:11 PM

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Model Number	Coupling Size	Thread 1	Materials	Pressure Rating
2STF2-B	1/4	1/4-18	Brass	4000
3STF3-B	3/8	3/8-18	Brass	4000
4STF4-B	1/2	1/2-14	Brass	4000