Caretaker Ultra Flex 2 8-Port Inlet Wear Insert Kit (2 Pack) | 3-7-153 2" collar these Threaded heads were only

these Threaded heads were only used before 1992* Most pools built after 1992 used bayonet style replacement heads found here: Bayonet Heads

secured by an o-ring

it helps ensure each cleaning zone receives consistent pressure and coverage

This is a great way to update your older system to a new caretaker complete valve

Insert the Metal Combination Tool (part # HTS-CARETAKER) into the collar and rotate clockwise until the collar is firmly seated

Caretaker Ultra Flex 2 8-Port Inlet Wear Insert Kit (2 Pack) | 3-7-153 2" collar these Threaded heads were onlyCaretaker Ultra Flex 2 8 Port Inlet Wear Insert Kit (2 Pack) The Inlet Wear Inserts are installed on top and underneath the Ultra Flex 2 Tee Assembly. As water enters the valve, the Motor Assembly rotates the Tee around the valve. The Inserts prevent friction and unnecessary wear to the housing and the tee. The four tabs on the outside of the insert ensure the part stays securely in place.