Grundfos Comfort Hot Water Recirculation Pump # UP15-10SU7P TLC (595916) (D) $728.00 $473.05 Grundfos Clip-On Aquastats Grundfos 24 Hour 115 Volt UP Circulator Timer # 599388 $199.00 $129.30 Grundfos Comfort Valve # 595926 $157.00