Cart Manifold Accessories and Actuators View cart “Four-Wire Actuator for Radiant Heat Manifolds” has been added to your cart. Showing 21–21 of 21 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 Four-Wire Actuator for Radiant Heat Manifolds $63.85 Add to cart 1 2