Pressure Washer Hose Hose Adapter Kit

The ProPulse 1/4" Uberflex Hose Adaptor Kit takes the guesswork out of upgrading your pressure washer hose - with the exact fittings you need, matched to your setup.

Upgrading to a quality high pressure hose like the Uberflex is only half the story — getting it to work with your short gun setup is where this kit comes in. The Pressure Washer Hose Hose Adapter Kit converts the threaded ends of Uberflex hoses into an OEM compatible system, giving you cleaner connections, faster swaps, and a better user experience overall.

Made from high quality materials, each adapter threads directly into your pressure washer hose — no guesswork. It’s a straightforward solution for detailers who want to run their OEM pressure washer gun or accessories on an Uberflex hose without wrestling with leaks, wobbly adapters, or incompatible threads.

If you're building a more flexible and professional pressure washing setup, this adapter kit is a small upgrade that makes a big difference.

 

Features:

  • Brand-Specific Adapter Kits: Options available for Karcher, Gerni, Bosch, Ryobi and more.
  • Turnkey Upgrade for Uberflex Hoses: Converts the standard ends on Uberflex or aftermarket pressure hoses into a full OEM compatible system.
  • M22 Thread Compatibility: Includes correct thread adapters (14mm or 15mm) depending on your washer model.
  • Made For Aftermarket Hoses: Designed specifically to fit the ProPulse 1/4" Uberflex range for maximum performance.

 

Pressure Hose Adapter Kits:

  • Karcher K Hose Fitting Kit
    • 2x Karcher K Male Adapters (M22 14mm)
  • Gerni/Stihl/Bosch Hose Fitting Kit
    • M21-M22 Hose Fitting, Gerni Male Adapter; Or
    • 2x Gerni G Connect Male Adapters
  • Karcher HD
    • EasyForce Models - 2x Karcher HD Easyforce Female to M22 14mm adapter
    • 2x M22 15mm Female - M22 14mm Adapters
  • Ryobi
    • Models with a female connector at both ends; 2x Ryobi Male Quick Connect adapters
    • Models with Male from the machine; 1x Male Adapter, 1x Female adapter and hose joiner. 

 

Directions:

  • With the supplied fittings, screw these into the ends of your Uberflex or aftermarket pressure hose at either end. These adapter use an M22 14mm thread. 
  • Match this up with your existing OEM hose to ensure orientation and adapters look okay.
  • Plug one end into the pressure washer, then the other into the pressure washer gun and the setup should work without leaks.
  • If any leaks are found, use some PFTE tape to ensure fitment is good.
4.8
Rated 4.8 out of 5 stars
Based on 15 reviews
Total 5 star reviews: 13 Total 4 star reviews: 1 Total 3 star reviews: 1 Total 2 star reviews: 0 Total 1 star reviews: 0
15 reviews
  • CQ
    Christopher Q.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    3 months ago
    High Quality Fittings

    These solid brass adaptor fittings for my bosch washer are amazing. The quality of connection and threads are awesome. They click in perfectly and do not jam unlike the cheap aluminum ones supplied with the unit not to mention I don't get sprayed with water when I turn it on.

  • C
    Craig
    Verified Buyer
    Rated 3 out of 5 stars
    7 months ago
    Opinions from a weekend warrior

    3 stars.

    Not because the product is crap, but because I didn't do what Waxit Clearly states in the descriptions you should do and call them to discus your particular setup first.

    The base end fits the machine perfectly (Karcher K3 around 5 years old ). Zero leaks and only a few wraps of the plumbers tape that comes supplied with the kit.

    My problem comes from the fact that I wanted the hose to go with the Karcher OEM gun ( which didn't fit) as I wanted it not just for car cleaning but also to use with the rest of the supplied Karcher Ecosystem accessories I own and I had already purchased an MJJC v3 Foam cannon with the K Series fittings.

    Waxit, to their credit offered me a discount on one of their guns that the adaptor kit Purchased would work with and also to refund me the money. Which as it was my mistake I thought was very fair. I went with the third option which was to butcher my lovely new hose and graft on the karcher fitting at reasonable extra expense ( facepalm) but am now very happy with the product.

    So don't be an Idiot like me.... Call them and Discuss the fitment with your machine first.

  • SE
    SHERWIN E.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    9 months ago
    Must Have for BOSCH Pressure Washers

    Great Quality and Fits Well.

    These connectors make it so easy to upgrade the standard Bosch Pressure Washer Hose to a Flexzilla.

  • MT
    Michael T.
    Flag of Australia
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    11 months ago
    Good product and service

    Good product and service

  • AT
    Aaidin T.
    Flag of Australia
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    11 months ago
    Great

    Great

  • IS
    Ian S.
    Flag of Australia
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 year ago
    Quality hose - the flex

    Quality hose - the flex and length makes using the pressure washer much easier