Choosing the Right Fittings for Your Pressure Washer & Accessories

When it comes to pressure washing, having the right fittings and connectors is essential for cleaning effectiveness and ease of use. Whether you're a homeowner looking to clean your driveway or a professional tasked with cleaning large areas, understanding the different types of fittings and how to choose the right ones can make a big difference in your cleaning projects. This guide will help you navigate the various options and find the best fittings for your needs.

Types of Connections

Quick Connects:

• Description: These fittings allow for fast and easy connection and disconnection of hoses and accessories. They are commonly used in both residential and commercial settings due to their convenience.
• Components: Quick connects typically consist of two parts: a plug and a coupler.
• Usage: Ideal for quickly switching between different accessories without the hassle of threaded connections.
• Quick connect couplers: Couplers are used to join two sections of the pressure washer hose or to connect the hose to other accessories such as spray guns, wands, or nozzles.
• Quick connect plugs: Plugs are designed to fit into couplers to create a secure, leak-free connection.

M22 (14mm) Fittings:

• Description: M22 fittings refer to a threaded connection type with an outer diameter of 22 millimeters. The “14mm” specification usually refers to the inner diameter of the male part of the fitting.
• Note: SurfaceMaxx fittings are all M22 14mm. It's important to note that other M22 sizes exist, such as SunJoe's M22 15mm fittings.
• Details: For SurfaceMaxx hoses and M22 fittings, the dimensions are as follows: the outer diameter is 22mm, the inner diameter is 14mm, and the inner plug on the female M22 fitting is also 14mm.
• Usage: Commonly found on many residential pressure washers, hoses, and spray guns.

Common Fitting Sizes

• 1/4-in: 1/4-inch diameter is a common thread and coupler size found across a wide range of professional and residential-grade equipment. SurfaceMaxx fittings in this size are specifically designed for various accessories, such as spray tips, wands, hoses, quick connect couplers and plugs to compatible equipment.
• 3/8-in: 3/8-inch diameter is a common thread and coupler size found across a wide range of professional and residential-grade equipment. Most commonly found on pressure washer hoses and quick connect couplers and plugs.
• M22 Fittings: M22 female and male connections are commonly found on pressure washer hoses, spray guns and spray wands for home cleaning projects. SurfaceMaxx and most pressure washer brands offer M22 (14mm) inlets and outlets. While uncommon, M22 (15mm) connections require a 15 to 14mm reducer to be compatible with SurfaceMaxx M22 (14mm) connections.

Understanding Male and Female Threads

• Male Threads: Male threads are external and can be found on a fitting or pressure washer attachment. These threads are visible on the outside of the fitting and resemble a screw pattern.
• Female Threads: Female threads are internal and can be found on a fitting or pressure washer attachment. These threads are visible on the inside of the fitting and resemble a screw pattern.

Quick Connect Fittings 

Fittings for Connecting to a Pressure Washer Pump

When setting up your pressure washer, choosing the right fittings is crucial for ensuring a secure and efficient connection between the various components. SurfaceMaxx offers a range of high-quality fittings designed to simplify the process of connecting hoses, spray guns, and other accessories to your pressure washer pump.

Quick Connect Set for Connecting Spray Gun to Wand

For those looking to streamline their pressure washing setup, the SurfaceMaxx M22 Threaded x 1/4-in Quick Connect Set is an indispensable accessory. Designed to convert the connection between your spray gun and wand into a quick connect system, this set includes everything you need for faster assembly and disassembly.

Connecting 3/8-in Hose to Spray Gun

Connecting SurfaceMaxx 3/8-in hoses and quick connect couplers is simple. Identify whether the fittings are male (external threads) or female (internal threads). Once you’ve determined the fitting type and thread compatibility, select a fitting that fits these specifications for a secure connection.

Connecting M22 (14mm) Hose to Spray Gun

M22 connections are common connections for pressure washer accessories. SurfaceMaxx and most pressure washer brands offer M22 (14mm) inlets and outlets. While uncommon, M22 (15mm) connections require a 15 to 14mm reducer to be compatible with SurfaceMaxx M22 (14mm) connections.