Compare Quick view Grundfos Comfort Valve Grundfos MSRP: Now: $78.50 Was: Replacement Comfort Valve for Grundfos UP15-10SU7P/TLC Comfort Series 1/25 HP Recirculator. The Comfort Valve is installed under the sink at the fixture furthest from the water heater. 595926 MSRP: Now: $78.50 Was: Compare Quick view Qty in Cart: 0 Price: MSRP: Now: $78.50 Was: Subtotal: