SPRINKLER TALK FORUM - You Got Questions, We've Got Answers

Good Morning! Hunter has discontinued the PS Series and the PS Ultra replaces the PS Series. However the the 2" and 4" models are retro-compatible with existing PS spray
bodies allowing a quick and easy upgrade to an exceptional new product.
This new spray body incorporates a reliable two-piece ratchet, durable
cap, male threaded riser, and large filter screen providing double
filtration on 4" and 6" models.The two piece ratchet system is more durable which leads to the PSU lasting longer. You can also pick the PSU series that comes with a flush plug which allows you to pick the best nozzel for your system. The following is a direct link to the best priced PSU.

http://www.sprinklerwarehouse.com/Hunter-PS-Ultra-Spray-Series-s/7215.htm