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Pressure Washer Quick Coupler, Male Half, 1/2 Inch Coupling, 1/2-14 Female NPT

Coupling Size 1/2	Brand Midland Industries	Brand Midland Industries	Pack Size 1.00	UOM EA	Materials Plated Steel	Pressure Rating 4000	Supplier Part Number ST4F4-S	Thread 1 1/2-14	Alternate Part Numbers Alternate Part Number C1DL59, Alternate Part Number MI-08752648, Alternate Part Number MINO-17764X96669	Product Weight 0.15 lbs

Product Questions & Answers 3

Product Questions & Answers

got a pressure washer hose with a 1/2-14 female NPT end, is this the right quick coupler half to screw onto it?

Question by: Norm M on Mar 2, 2026, 4:49 PM

For a 1/2-14 female NPT connection, the threaded side on this coupler matches that size and thread. It is the male half quick coupler with a 1/2 inch coupling size.

Answer by: Customer Support on Mar 4, 2026, 7:25 AM

Will this fit my pressure washer if it's got a 1/2-inch female NPT fitting?

Question by: Phil A on May 24, 2025, 11:58 AM

Yes sir, this coupler's got a 1/2-14 female NPT thread, so it should screw right on if your pressure washer has the standard 1/2-inch male NPT.

Answer by: Customer Support on May 26, 2025, 8:11 AM

Got a pressure washer running 3800 PSI and need to swap out a busted quick coupler, this a male half with female NPT threading on it?

Question by: Ricky H on Jul 22, 2025, 7:49 PM

Correct on both counts. The coupling is the male half of the quick connect setup, and it threads into a 1/2-14 female NPT port. At 3800 PSI you'd have solid headroom under the 4000 PSI rating, so it should hold up fine for that application.

Answer by: Customer Support on Jul 24, 2025, 6:15 AM

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Model Number	Coupling Size	Thread 1	Pressure Rating	Materials
ST2F2-S	1/4	1/4-18	4000	Plated Steel
ST3F3-S	3/8	3/8-18	4000	Plated Steel
ST4F4-S	1/2	1/2-14	4000	Plated Steel