I had to install these in cold weather, so it was upside down, outside the pool. They arrived with the doors facing the wrong way for the two screw holes already in place. I guess I could have popped them out and turned them around, but I did not want to break anything. They work extremely well, even installed backward. I let someone make me believe these doors were unnecessary after they broke them during a pool renovation. I spent 6 months with a messy pool surface. Get these doors! They work well.
Rating: [5 of 5 Stars!]