Skip to the beginning of the images gallery

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

Description & Features

The Pressure Washer Quick Coupler Male Half 1/2 Inch Coupling 1/2-14 Female NPT offers a practical solution for high-pressure applications supporting up to 4000 PSI. Constructed from durable plated steel it provides resilience and longevity in demanding environments.

Midland Industries ensures the product meets high standards with a design that focuses on reliability and performance. The 1/2-14 female NPT threading guarantees a leak-proof connection enhancing the integrity and efficiency of pressure washer setups.

With a 1/2-inch coupling size it boasts versatility suitable for various industrial applications serving as a dependable component in maintaining effective pressure washer assembly systems.

MPN: ST4F4-S

Supplier Part Number: ST4F4-S

Specifications

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

Similar Products

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

Product Questions & Answers (3)

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

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

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

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.

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

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

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

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

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?

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

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.