RO6G Replacement Sport Superbag 39-310 Bag for Polaris 3900 Sport Superbag Zipper 39310 (2Pack)

Comes very compact. Easy to install and works great on our pool vac

As advertised!

Zipper is very difficult to use.

Good deal

This bag lasted 15 months. Probably the average lifetime of a pool cleaning bag. Mine got a hole in the bag. On the other hand, zippers get stuck every time you try to close the bag after cleaning it. It is better if you clean it when it is dry, but for that, you need to buy two bags. So you can place a clean and dry one while the other one is drying and cleaning. That means around $85. I think this bag is overpriced. Look for cheaper options (generic brands), the same quality.

Excellent

Especially good containment of fine debris. Wish I'd bought one at the beginning of summer!