Science of Silence
Halyard
Halyard's Exhaust Through Hull Fitting is designed to be infinitely stronger than the plastic and GRP units and tougher than most stainless units.

It's made of 3mm thick 316 stainless to ensure that the risks of damage when manoeuvring a craft are reduced to the absolute minimum.

All units are designed so that the flap, at rest, is shrouded by the stainless rim to prevent damage if the vessel nudges a harbour wall.
• Through Hull Fittings - Neoprene Flap

• Use with exhaust hose up to and including 102mm (4”)

• Tail allows T bar exhausts hose clamps to be used

• Smaller sizes have 3 countersunk fixing holes

• 90mm (3 ½”) and 100mm (4”) units have 4 bolt holes and a bolting flange

• Through Hull Fittings - Stainless Flap

• From 125mm (5”) upwards all have stainless flaps lined with neoprene

• Tail allows T bar exhausts hose clamps to be used

• 4 and 8 bolt holes on all units
Halyard