This is a replacement Viton Seal-503811 for Hypro 4001/4101 series 4 roller pumps. The Viton construction offers superior chemical resistance.
FIMCO Complete Manifold Replaces all models
7771967
Valve Sub-Assembly for LG-55-3PT and LG-60-3PT-309
5277754
16 x 6.50-8 TL Tire Turf 2-Ply 3" Symmetrical White Wheel
5021089
FIMCO Single Shutoff Valve
5143419
5110052
Viton Seal-503811