The aerator (anti-siphon unit) is designed to prevent siphoning, what occurs if the engine is mounted under the water line, or the water injection into the exhaust is lower than 15 cm above the waterline. The aerator must be placed at a safe height above the waterline
The recommended height is at least 40cm.
Siphoning done by a law of nature, the communicating vessels. Here the water flows through the water supply by the engine in the exhaust system. When the exhaust system is filled, the water runs further back into the engine.

Martec aerators

Simple and compact aerators, no metal parts

Available for the following hose diameters:
Partnumber/Hose diam:
M950-7712 – 12mm
M950-7716 – 16mm
M950-7719 – 19mm
M950-7722 – 22mm
M950-7725 – 25mm

Thor aerator with metal ball valve

Suitable for the following hose diameters :
16 – 19 – 25 – 32mm

Part number: 56.0692

Stainless Steel aerator

Available for hose diameters:
13 – 16 – 19 – 25 – 32mm



Nanni plastic aerator

Suitable for hose diameters:
13 – 19 – 25 – 32mm
Part number : N 970301077