5/8" Siphon Vented Loop | Forespar 903003 Mercury Connectors Replaces Johnson/Evinrude 763764

Replaces Johnson/Evinrude 763764

This impeller measures 2-7/16 inches in diameter

3M has been helping keep watercraft of all types at their best for more than 50 years

exhaust elbow port size

reducing the time you spend worrying about fit and performance

5/8" Siphon Vented Loop | Forespar 903003 Mercury Connectors Replaces Johnson/Evinrude 7637645 8" Siphon Vented Loop Forespar 903003 FORESPAR 5 8" SIPHON VENTED LOOP 903003 Eliminates siphoning and backflow in marine toilet systems. Eliminates siphoning and backflow in toilet systems Install in between the discharge hose above the waterline, when head or holding tank is below the waterline Precision molded in high strength, lightweight Marelon so vent nor loop will corrode 5 8 in. hose barb size 4 1 2 in. height 4 in. width MF 843 model number