Overview

The 3/8F Coupling 3/8F NPT is the socket half of a 3/8 inch stainless steel quick connect fitting for pressure washers. The listing describes it as a quick connect NPT thread fitting rated for 5000 psi, made from stainless steel. It carries a 3/8 inch NPT female thread on one side and the socket profile on the other, so it screws onto a 3/8 inch male port and accepts the matching plug for a tool free connection.

The 3/8 inch size is the heavier quick connect in the range, used on high output machines where the larger fitting carries the flow and the pressure. The socket half stays on the machine or the delivery hose, so the operator swaps lances and tools by changing the plug while the coupling stays put. Stainless steel keeps the coupling free of corrosion in constant wet use.

Key Features

• 3/8 inch quick connect coupling
• 3/8 inch NPT female thread
• Stainless steel body
• Rated to 5000 psi
• Socket half of the quick connect joint
• Heavier size for high output machines

Specifications

• Product: quick connect coupling
• Size: 3/8 inch
• Thread: 3/8 inch NPT female
• Material: stainless steel
• Pressure rating: 5000 psi

Applications

• High output pressure washer delivery lines
• Gun and hose quick connections
• Machine to accessory changes on site
• Delivery line connections on commercial machines
• Corrosive and wet working environments

What You Need to Complete the Job

Match the coupling with a 3/8 inch plug with a female thread to complete the joint, or a 3/8 inch male to male plug where the port is female. Add a 5 piece nozzle kit for the spray angles, and see the Pressure Washers Accessories range for the rest of the kit.

Frequently Asked Questions

What size is this coupling?

It is the 3/8 inch size, the heavier quick connect in the range, with a 3/8 inch NPT female thread on the port side. It is used on high output machines and delivery lines where the larger fitting carries the flow and the pressure. On a high output machine the 3/8 inch connection carries more flow than the 1/4 inch size, which is why the heavier fittings are used on the bigger units.

What pressure is it rated to?

The listing states 5000 psi. That puts the coupling at the top of the pressure washer range and makes it a match for the high output machines and most commercial pressure cleaners.

Which plug does it take?

It takes the matching 3/8 inch quick connect plug, either the plug with a 3/8 inch NPT female thread or the plug with a 3/8 inch NPT male thread, depending on the port on the accessory side.