U.S. Seal Shaft Seal [PS 1907] [5 8" Shaft] [Silicon Carbide] (PS 1907) pleatco The 006737F is a practical The 006737F is a practical service part when a compatible Raypak heater needs a pressure switch to restore dependable operating condition monitoring The buttress fitting design and VGB 2008 compatibility give this part its application specific value because it helps preserve the intended fit and support relationship of the original suction assembly It is a compelling choice for service professionals who want a better finished outcome and for buyers who understand that the right internal parts protect the value of the entire pump and in a high quality rebuild it deserves the same attention as the basket