Gotthardt Universal Flushing Muff – round, for Outboard & Sterndrives

After every use in salt or brackish water, flushing the cooling system is the most important maintenance measure on board. Gotthardt's round universal flush muff makes it very easy: simply attach it, connect a garden hose, and let fresh water run through – no flush stand, no hassle.

Tip: After attaching the flush muff, let the engine warm up briefly before turning on the water – this will fully open the coolant thermostats and ensure the entire cooling system is flushed evenly.