99521972 - Grundfos 99521972 - Digital Timer for UP15 Grundfos Pumps
Grundfos RCP18 (UP15-29SUC/TLC) (59896777) Pump, Circulator 115V 1/2 HP Union Connection Ready w/Timer: Portable Power Water Pumps: Amazon.com: Tools & Home Improvement
Grundfos UP15-29SU 1/12 HP 115-Volt Circulator Pump 59896775 - The Home Depot