There are many models available with different levels of resistance, since this item can not be returned, I would like more information
475036
Jesus I am a 5-time ironman and even the basic model helped me. The more serious you are as an athlete will determine which model. Note all the models even the most basic one will help you enhance your lung capacity. Ross Hauser
475037
I purchased the blue power breathe and have found it more than adequate for my needs. Begin using the device at its lowest setting and work the resistance up from there. As a large, reasonably fit man, I have not come close to maxing out the resistance on the device. Hope this helps!
1852118
I am not sure I would check the manufacturers website for more information.
1773455
Hi. I'm sorry I don't know where else to buy this item. If you do find one you'll like it for sure. Good luck.
858570
I have absolutely no idea, I'm sorry...perhaps some of the other purchasers can help you.
2265326
I have no idea. Perhaps if you can find a way to contact the supplier or manufacturer....
34563
it may be a different vendor who has the item for sale. They may be out of stock.
900642
That might be a question that you might want to ask the manufacturer itself or maybe Amazon who created the product listing. We are only a reseller.
1243962
I can't get you one, but I think if you read some of the buyers' comments, you may find some answers. Some of the Grosche seller's entries contain replacement information. You' ll just have to do some searching.
692702
Unless you bought the model with Resistance pistons you cant adjust the resistance.
332737
you have answered your own question...you can always contact the manufacture for further info regarding this item/prouct
1850412
You can contact the seller, but I just went to another seller and bought one of higher build quality.
1124045
I'm not sure. I would reach out to the manufacturer. They are pretty responsive. They just don't like to replace items.
74304
Sorry but I really do not know, i do remember seeing some others available for your model.
729029
Amazon has always accepted returnd of thie type in the past. I see no reason why you would not be able to obtain a refund or new unit...
266784
I really have no idea. I would suggest contacting the company that makes the item
889301
I'm not sure id go a look and if not you can ask the seller. Sorry I can't help further.
72156
Wow! Thanks very much! This is helpful. It's also information that Amazon does not have. You would think their sellers would be vetted more and that they would have complete information. I will call him too.