Lawn Genie #R406DLG Water timer Control 6 Zone Vtg Richdel No Power Supply | eBay
Nest for Sprinklers: OpenSprinkler - Brian Cantoni
Wiring issue swapping out old controller Richdel 446pri - Wiring - Rachio Community
Wiring issue swapping out old controller Richdel 446pri - Wiring - Rachio Community
TruBlue Irrigation - This week I've been starting to replace a number of these old irrigation relics... these controllers still work but are both over 20+ years old and the new controllers
Converting from Richdel 412PR with a well. Will it work? - #2 by DLane - Before You Buy - Rachio Community
Richdel 500PR Irrigation Controller, Not Tested, Salvage
Richdel Lawn Genie 446PRI Controller Owner's ... - Irrigation Direct
Irritrol / Richdel 446pri Sprinkler Controller (untested) for sale online | eBay
Richdel Archives - The Watershed OFFICIAL CONTROLLER MANUALS LIBRARY