Used the steel HP single braid 3/8" hose for past 15 years. Always did not like it very much: Slapping against the car, weight of the hose, and my main concern was when the outer part of the hose started cracking the steel wire could become exposed and potentially stab a customer.
Been experimenting with 3/8" Goodyear InstaGrip for the past 3 years. I am now going to this hose in all my bays. My main concern was with hot weep water in winter and hose kinking. Handles the hot water well, but you really need a hose protector and that has been the tuffest part - keeping the hose protector in place. I am running 45 degree pipe street elbow between swivel and hose at top of foam brush handle.
Other benefits: Some of the same lines have been going for 3 years. Does not dry and crack like other HP hose I've been using lately. Also, another added bonus, you use pushlok connectors for easy install and repair.
https://www.kleen-ritecorp.com/p-2626-goodyear-blue-insta-grip-hose-38.aspx
Description from KR website:
PUSH-ON HOSE (GOODYEAR “INSTA-GRIP”)
Application: For use with push-on fittings at working pressures of 300 psi. For low pressure hydraulic and pneumatic systems such as shop air systems, general industrial, maintenance and automotive applications.
Construction:
TUBE- Seamless synthetic rubber. RMA Class A (High oil resistance)
REINFORCEMENT- Braided (1) high strength synthetic yarn
COVER- Black, green, blue, red, gray and brown. Oil, weather and abrasion resistant synthetic rubber.
Temperature: -40F to +200F