When a PacFab-style filtration system needs a new control valve, the Praher SM1-PP3 offers a 1-1/2 inch replacement designed around that plumbing format. A correctly matched multiport valve can help restore more predictable system behavior while avoiding the compromises that sometimes come with generic replacements.This valve is useful for keeping the installation closer to its original plumbing design. That can make service work easier and help maintain the intended routing performance once the valve is back in place.It is especially worthwhile when the old valve has become stiff, is beginning to leak, or no longer delivers clear and consistent position changes. Praher SM1-PP3 multiport valve Built for compatible 1-1/2 inch PacFab plumbing systems Helps preserve original replacement fit Restores dependable operating control Ideal for worn or leaking valve replacements