Fitting for exhaust water drain hose - H.O. OEM Indmar 605004

• Straight nylon fitting. Size 1/2" threaded X 5/8" hose
• Fitting used in Indmar cast iron exhaust for the water drain hose
• ETX - CAT Manifold
• 1/2" NPT  Actually, the diameter of the threads is 9/16" inside diameter X 1" exhaust drain EXT-CAT
• Need 1 per side on ETX CAT

Threads in cast iron will close up over time because of corrosion.

You may need to use a wire brush to clean them before the new barbs will fit correctly.