Polaris 3900 Sport / Vac-Sweep 380 / 280 / 180 / 280 TankTrax and TR35P Pressure Cleaner Mechanism for Backup Valve | G53 A&A while also having fin-like levels

while also having fin-like levels in the middle so water can easily move between providing better maneuverability

environmentally safe formula

Sealed housing with O-ring and band clamp helps prevent pressure loss and leaks

Retrofits existing Pentair/A&A Gamma 3 & Gamma 4 collars—no major plumbing change needed

Polaris 3900 Sport / Vac-Sweep 380 / 280 / 180 / 280 TankTrax and TR35P Pressure Cleaner Mechanism for Backup Valve | G53 A&A while also having fin-like levelsPolaris 3900 Sport Vac Sweep 380 280 180 280 TankTrax and "Trade Grade" TR35P Pressure Cleaner Mechanism for Backup Valve The mechanism for the backup valve is replacement parts that are made by Polaris. They used the same high grade materials that were used to make the original factory parts. Making them genuine OEM products The mechanism is the internal parts of the backup valve which was designed to be the feature that backs the pressure side