Polaris TR36P Pressure Cleaner In-Line Back-up Valve, Black | 9-100-1201 Blue Square Features a weighted bottom chassis

Features a weighted bottom chassis and complete 360-degree coverage

It is an exact replica of the original factory part

thread lock

it provides full coverage while reducing system stress and turbulence

Polaris TR36P Pressure Cleaner In-Line Back-up Valve, Black | 9-100-1201 Blue Square Features a weighted bottom chassisPolaris "Trade Grade" TR36P Pressure Cleaner In Line Back up Valve, Black (9 100 1201) This back up valve was designed to be the feature that backs the pressure side cleaner out of any corners or edges along with the pool steps which would cause the cleaner to be hung up or impeded in any way. Without it, the cleaner would be insufficient in its abilities to suck and pull up dirt and debris off your pool's surface. This part is black and should be