Jandy VS PlusHP\ePump 2.7 HP VS Pump Impeller w/Screw, Backplate O-Ring || R0807200 Pentair Plastic Niches There are 2 hinged so

There are 2 hinged so they can move past the rear wheels and the other two are not hinged so that way they do not impede the wheels as they rotate

As an OEM Pentair part

and hardware for SuperFlo & SuperFlo VS pumps (SKU 353010)

The upgraded locking tab and spring mechanism ensure reliable performance even with variable‑speed pumps running at lower RPMs

The full-circle intake promotes even suction across the drain surface

Jandy VS PlusHP\ePump 2.7 HP VS Pump Impeller w/Screw, Backplate O-Ring || R0807200 Pentair Plastic Niches There are 2 hinged soJandy VS PlusHP ePump 2. 7 HP VS Pump Impeller w Screw, Backplate O Ring R0807200 Zodiac Pool Systems Inc, Jandy, Shp Stealth Php Plushhp, Impeller Kit, Horsepower: 2, For Use With: Vs Plushp Series Pump (Mfg. 2014Present) Vsphp270, Epump(TM) + Svrs Variable Speed Pump Jep2. 0Svrs, Epump(TM) Variable Speed Pump Jep1. 5, Jep2. 0, Vsshp22