I have a 30-60 whisper dual outlet air pump and an aqua culture 30-60 dual outlet air pump. I bought both these pumps at Walmart. The whisper was like $15-$16 bucks I think and the Aqua Culture one was like $11. The reviews for these 2 pumps are mixed, either love um or hate um no in between. Both of these pumps put out very well imho. Both of these pumps are very quiet as well, can't even tell they are there. I cant comment on the durability of the pumps because ive only been running them about a month but hell, if it only lasts 6 months you only got $11 dollars in it so no biggie. If your on a budget i dont think you can go wrong here. Hope this helps bro. Happy Fish Keeping!
i always put my air pumps on a washcloth keeps the noise that is transferd from the vibration down i like rena pumps but they wear out the rubber feet same with aqua culter wihisper dosnt do this as bad but that is y i use the wash cloth keeps them from wearing down and if ya check the screws and keep them snug then the above mentiond pumps shuld stay quiet for a long time .