best low-flow but high-pressure shower head?

The hotel one from real goods is awesome, I have it in both showers in my house, the high pressure is almost a mist.

Alsons' are the creators of the Water Amplifying feature used in the Delta Shower head mentioned above. It looks like Delta bought Alsons' at the end of 2011 (http://www.deltafaucet.com/alsons.html) I have the Delta (1.8/2.5 gpm) model on the upstairs tub, but I bought the Alsons' 1.5gpm version for the master bath and find the performance to be similar. I found it in the $25 price range online. I've seen the Delta on the shelf at the Big Box stores so if you are worried about the possibility of wanting to return it, you may want to go that route.

If you want to go ultra low flow you should check the Aqua Helix (http://www.aquahelix.net/) which I used for 4-5 years before the wife forced me to get the Alsons'. It provides a strong, tingling stream unrestricted but can be adjusted by sliding collar down to more of a soft pattern. It spins a single stream around within the head much like a pressure washer nozzle does. You'll see on their web site that it is a real "Love it" or "Hate it" kind of product. I'll re-install the Aqua Helix again if we go back to drought conditions or have water restrictions.

I also have a Real Goods showerhead, the one that costs about $12 and has a flow rate of 1.2 gallons per minute (and an on-off switch). The realgoods website is down at the moment, but a Google search will turn up this showerhead on Treehugger and other sources. I bought mine from Real Goods around 1996 and it has performed flawlessly all these years; guests (especially those from Europe) always remark how much they enjoy our shower. It gives a very strong and satisfying shower but not the "pins and needles" kind that hurts. It does take longer to wash long hair under it, I'm told....not an issue for me as I don't have much hair left myself. ;-)

I have the Oxygenics Storm and one similar to the Elite Oxygenics Skin Care on this page. http://www.faucetdirect.com/oxygenics/c30780?source=gg_oxygenicsgen_oxygenicsexact_oxygenics_e_7422965963_1t1_g&s_kwcid=TC|20470|oxygenics||S|e|7422965963

I've had them both for several years now and they still look and work like new. Best low flow showerheads I could find. Really nice pressure, even in a low water pressure apartment (and now that I have moved to a regular water pressure condo, they are even better)

Try Ecocamel (www.ecocamel.com/). These heads aerate your shower as it flows thereby maintaining pressure, but reducing water use. I have one at home that works really well. Only thing to watch out for is that they are slightly more noisy than a standard head.

I have one of the hand held ones from water management and they are amazing. http://www.takeashower.com/

My last place had water that barely dribbled out and this shower head turned it into a blast. Everyone I've recommended the shower head to has loved it.

I highly recommend the Delta 75152 Water Amplifying showerhead. It has 2 settings, the 'regular' setting is 2.5 gpm, and the 'low' setting is 1.85 gpm. The 1.85 is more than plenty. My main complaint with low flow showerheads has always been there wasn't enough pressure to rinse effectively with. Not the case with this unit. When we first got it, we used the regular setting, for a week or so, but were able to go down to the low setting ever since and it's worked wonderful. After visiting my sister in MN and dealing with her 'dribbly' low flow head, I think I'm going to start giving these as presents for Christmas and birthdays.

American Standard FloWise Transitional 3-Function Water Saving Shower www.americanstandard-us.com/shower-faucets/flowise-3-function-water-saving-showerhead/ Bought one of these after evaluating Amazon.com www.amazon.com/gp/product/B00125PZJ8/ref=noref?ie=UTF8&s=hi&psc=1 and Consumer Report magazine. Was so impressed that I purchased a second for our other bath. This showerhead delivers a deceptively economical flow of water by using turbine technology, giving the sensation of a greater flow rate.
There are three settings; at 1.5gpm you get a basic shower pattern, and at 2.0gpm, you can choose between a full spray or combination spray. If one of the 2.0gpm settings was used, when the shower has ended, the setting resets to the 1.5gpm default. Running out of hot water after multiple showers has been reduced or eliminated (with two teenagers), but the primary consideration is conservation of water, especially during a prolonged Texas drought.

I always look for the most "environmentally hostile" (tongue in cheek) shower head I can find. http://www.showerbuddy.com/ has some nice ones. Or retrofit your existing inefficient shower head: http://www.freeexistence.org/highflow.html

Note that low flow, in addition to being unsatisfying, take longer to get warm, and studies have shown that low-flow showers are correlated to respiratory illness (from the mist that low-flow tends to produce.

Bricor!