Vortex Flow Accelerator - Model FA

I’m not positive exactly what it does because it’s hard to actually measure but it beats the standard return nozzles. The price is not horrible. This is my second one and will continue to use them when I need to replace my returns

If you need to use the smaller connections, Don't bother trying as it will not come come apart to change it without having to destroy the other fitting to try. It's late in the day to find a saw and pliers to rip it off. Even then am doubting it will go back together properly.

If you need to use the smaller connections, Don't bother.it won't come apart to replace

Did not fit my unit. But I was able to get a refund.

Blade does not spin at all. Trash