Im not sure about those heads......Richdel is no longer a company.....Richdel and Hardie merged to form Irritrol, and the heads were changed around/ dicountinued etc. What are they spray, rotor???????
If you want to install new heads my recomendation is
Spray - Toro 570
Rotor - PGP - or Tbird
Tbird
Let me know some more info
Thanks
Ray
Rays Above and Beyond Automatic Lawn Sprinklers
Thanks
Ray
Rays Above and Beyond Automatic Lawn Sprinklers