METROVACDIDA-4 Magic Air Deluxe 4.0-HP Inflator/Deflator, High-Powered Electric Pump for Inflatables, Air Mattresses, and Pool Toys

This pushed a lot of air through the pump and aired up a 3m Zorb (Human Hamster) ball in less than 10 minutes.

Didn't work, got very hot, was expensive.

Wow! This thing is awesome. We have a large "party island" that took 30 mins using our old inflator. This thing (the 4HP version) inflates it in about 5 mins. I think the adapter/hose could be a bit more solid, and the adapters could be attached to the hose so you won't lose them. Otherwise, this would be 5 star for sure.

Gets hot pretty fast. It does fill up inter tubes quickly. I would not say commercial grade.

Lots of power for sure.

works great

I own a rafting company. I have 3 of the dida-4's. I'm going to purchase two more today. We run these pumps mounted to the wall with 50 ft hoses on them. They run all day, every day, all summer. We try not to let them get too hot, but they do with the amount we use them. In the 12 years that I have owned the company, we have only had to replace one. These were in use when I purchased the company. I think one of them is starting to get tired, so I'm purchasing one to replace it, and one for a spare. At the start on the season, we inflate 60 large rafts and 24 IK's. We alternate 2 pumps so they don't get too hot. It would take 10 lifetimes for the average person to use this pump as much as we do.

worked as advertised. seems to get pretty hot when in operation, but had no issue inflating multiple lake rafts and tow behinds. It actually filled them fatser than I anticipated.