Cart Flange Kits & Valves Here you can flange kits and isolation valve kits for Grundfos and Taco circulator pumps. Showing all 5 results Default sorting Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low 1-1/2″ Copper Press-Fit Isolation Flange $63.06 Add to cart 1-1/2″ Taco Cast Iron Flange Kit (Pair) $33.89 Add to cart Taco 1-1/2″ NPT Freedom Shut-off Swivel Flange Set $145.11 Add to cart 1-1/2″ Grundfos 15/26 Iron Pump Flanges, NPT (Pair) $32.00 Add to cart 1-1/2″ Grundfos UP43 Iron Pump Flanges, NPT (Pair) $38.00 Add to cart