So, I went on Amazon only because we needed a pump pronto .Got it, tried it for less than 5 minutes (slow, weak) .Then I noticed SunnyLife had one just as small but much more powerful ( at less than 3 bucks higher!) I returned the "other brand" same day. As expected due to the quality of all our other SunnyLife purchases we are very happy ! My husband was blown away how much better the SunnyLife brand works ( the same size & shape as "other" but higher volts/ watts...whichever term applies)! The following week we got Covid :>(. We had a heavy duty queen size inflatable mattress still in the box. This float/ pool pump inflated that mattress in no time . Highly recommend