I did a lot of research, trying to find a replacement for an old Melnor nozzle that I inherited from the previous owner of my house. That nozzle was just about perfect: there was a wide and predictable range of adjustment in the spray pattern; the trigger was easy and comfortable to activate; and the lock-open feature (which I use all the time) was fairly easy to activate with the same hand, and (like an electric drill) it released automatically by just pressing the trigger. It had no built-in flow control, but the previous owner had also left an in-line plastic valve, which I screwed into the handle between the nozzle and the hose. That flow-control was the only part I could not activate with one hand.It was a great tool, and I always made sure to bring it inside during the winter to protect it from freezing. But this past spring, during an unforecast overnight-only freeze, the all-plastic nozzle cracked and could not be repaired. I looked first for an exact replacement and found that it was no longer available. I tried a couple of nozzles I picked up locally and discovered quickly how important one-handed operation is to me.The vast majority of nozzles have the trigger on the back (palm) side and a little metal clip at the top-back end that functions to lock the nozzle open; but it is nearly impossible to activate and deactivate that clip with the same hand in which you're holding the nozzle. I couldn't find anything locally that looked like it would work like my old Melnor nozzle (including new Melnor nozzles), so I started looking online.I first found the Gilmour Front Lever Easy Grip Nozzle 413, but it turned out to be very inconvenient to use. You can read my review on its product page.I resumed my search and found this nozzle, which is Melnor model T300 (also listed as Prem Metal Front-Trigger Aqua-Gun, usually at a different price). It is EXACTLY what I was looking for; clearly it is the current version of the old Melnor nozzle I was trying to replace. The spray is adjustable over a wide range and is stable and predictable; the lock-open latch is extremely easy to engage with the index finger, and it releases automatically when the trigger is pressed; and the flow control is easy to adjust with the thumb, over a much wider range than the Gilmour nozzle (although it still does not shut the flow off almost completely as I wish it did).The only uncertainty is how rugged this Melnor nozzle will prove to be. Reviews on other sites complain about leaks and broken lock-open latches. It does feel much lighter and less rugged than the Gilmour nozzle I mentioned above - more plastic than metal - but that doesn't necessarily mean that it will break soon. My old Melnor nozzle was probably at least 20 years old, and it was ALL plastic. If it does break, I will update this review. Until and unless that happens, this nozzle's functionality makes it nearly ideal.
Rating: [4 of 5 Stars!]