Grundfos UP15-18B5 (59896114) Pump, 1/2" Sweat End Open System Circulator, 1/25 HP 115V-Bronze, 12" x 12" x 12", Red - Sump Pump Accessories - Amazon .com
Amazon.com: Grundfos 52722512 3-Speed 1/6 Horsepower Circulator Pump with Flow Check ASIN: B002YR4AVW View on Amazon, Large, Red : Industrial & Scientific
Grundfos 59896341 Brute Series Three Speed 1/25 HP Recirculator Pump
Grundfos UP15-10B7 1/25 HP Recirculator Pump (59896226) - Power Water Pumps - Amazon.com