【Wide Compatibility】The G52 valve pool cleaner is suitable for Zodiac Polaris 180, 280, 380, 3900 Sport, Vac-Sweep 380, Vac-Sweep 280, 280 TankTrax models.【Upgraded Version】Compared to the previous emergency valve, our g52 emergency valve replacement kit for polaris has improved shell material, crack-resistant polymer construction, will not be easily damaged and has a long service life.life twice as long.[upgrade] Compared with the previous emergency valve, our Polaris G52 emergency valve replacement kit improves the housing material, resists cracked polymer structure, is not easy to damage, and doubles its service life.life.Includes G53 mechanism inside, G57 clamp and outer shellEasy to install, simply disconnect the old valve and insert the pipes into the connectors of the new one.Be careful to respect the direction of assembly.