KärcherFJ10 Foam Nozzle with Ultra Pressure Washer Detergent, Black, Yellow

This Karcher FJ10 nozzle is brilliant. Twist lock onto the Karcher handle - Click fit to the bottle of foam wash that was supplied with the nozzle and turned the mix ratio dial down to minimum... to test the foam-ability of the combination. I was highly impressed even with the dial set to minimum.... the car was covered in a thick blanket of foam. My car is a large 4 door saloon and has a large surface area to cover. But I reckon I only used about 1/8th ( 12.5% ) of the shampoo, so I think I will get 8 washes out of the 1 bottle of Karcher Car foam. So that's not bad value when you think about it. You can then either purchase more Karcher or refill the empty reusable bottle with the foam of your choice. I am very happy with the quality of the Karcher nozzle and can genuinely recommend this model when used with the K4. The foam is great on bodywork and washed off lovely, however I prefer to use an alloy wheel cleaner specially formulated to dissolve break dust to keep my alloys in tip top condition... each to their own... I guess..... but just be aware that the Karcher foam wash has it's limitations.... don't hesitate if thinking about getting one, I'm sure you'll be as happy as I am with my purchase.

Really enjoy using this foam gun, when the car is white over, leave it for 5 minutes to allow the foam to dissolve the dirt, jet wash off and apply remainder of foam, wash with soft brush or microfibre cloth, wash off and wipe dry with clean microfibre cloths. Brilliant 👌

It works but I have learnt the hard way to not to grip around the top when adjusting the spray, the bottle is too easily released, annoying when you’ve barely used any and you’ve spilt more than you’ve used.

Great product I was a little u sure when buying it but I read the reviews which is what sold me on the item. I run a K4 I bought the ultra foam over and above the car shampoo it gave me a great foam I've just done 4 cars and could probably do another 8 of 1 bottle so that's really good value for money. The click system is so easy to use and the bottle can be refilled after. The actual ultra foam is really good and I have a great finish so I'm tempted to just try and get a refill of that but the option is there if you want to use a different one. Personally for the money I'd buy this one over and above a generic one.

Good job but very hard to insert and remove from the lance

Works perfectly

I have a K3.86 pressure washer and the bayonet fitting on this is too short to engage despite the description listing K3 models as compatible - it fits into the handle, but won't twist to lock. Ironically the Karcher extensions that came with the Karcher T5 patio cleaner I bought at the same time do allow me to attach it - albeit in a slightly clumsy way - so it would seem that the Karcher design team have failed to retain compatibility with their own products or want to troll all the existing owners with new design while retaining the old model names to cause maximum confusion.Incompatibility issues aside it seems to do a decent job if you can connect it.

The media could not be loaded. Easily attached to karcher pressure washer hose. You can adjust the thickness of the foam which sticks to the car well. I found that it removed dirt better from a pre waxed car rather than one that has not been. Will not lasy long if you have it turned up full. Used half a bottle on two cars. You will still have to scrub the cars to get of stubbern dirt