Okay, I think I may have found them on good old Amazon (and darn, it's only a little bit more expensive than the McMaster Carr was) ... https://www.amazon.com/gp/product/B001HOSYOC and https://www.am… (View Post)
@JEB & @Verna, I'd interpret the GPM rating as max GPM, where actual use might be different. Maybe the Oxygenix is simply more efficient and effective at a lower flow rate, so you don't tend to r… (View Post)