Here is a site that shows the lightweight blue max power washer hosehttp://www.shopping.com/Psi-Blue-Max-2200-Psi-High-Pressure-Gas-Power-Washer/products
It looks to be a right-fine chinese product manufactured using the technology we paid-for and developed over the past 50 years and then gave away with our jobs overseas.
If you bump up to professional power washers..
Power washer hoses are interchangeable as long as the quick-connects on end of hose can unscrew.
We used power washers a couple times a week. When I needed a new hose, I went to the hydraulic hose shop. They make steel-wound hydraulic hoses for tractors and heavy equipment.
Search 'hydraulic hose in Your-town-your-state'
If the quick-connect ends of the Blue max hose do not come off, check the quick-connect end attached to machine. If it comes off, you can buy a new gun and hose. If the quick connect on the blue max machine does not come off, then the life of your machine is directly related to the life of that single quick-connect fitting.
Search 'power washer guns'
Here's a site with guns like we usedhttp://www.ultimatewasher.com/pressure-washer-trigger-guns.htm