| EK, Whisper discontinued this line of pumps. I now use a "Luft" pump, and it works absolutely fantastically. You can use just about any pump, the more powerful the better, but having the pump's output be adjustable is a very good feature to have.
I believe another company is selling the old whisper pump design, now called "air-whist" or something. I'll see if I can add a link or two.
Travis |