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Through Hull Exhaust Flap 40mm - 51mm
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Quietlife Rubber Exhaust Outlet Flap (40mm - 51mm)

Part No. 409454

€15.49 You pay €15.49 Incl VAT You pay €12.91 Excl VAT

RRP €17.20 €14.33

Save €1.71 (9.9%) Save €1.42 (9.9%)


1 reviews
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Brand Quietlife
Construction Rubber
Hose Tail Size 40mm / 1-9/16", 51mm / 2"
Size Standard Size: 51mm, Cut Size: 40mm

Quietlife protecting end cover for through hull exhaust outlets, made from tough rubber. The flap acts as a check valve to help prevent sea water entering the exhaust outlet and flowing towards the engine. Without a flap, water can easily flow into the exhaust line when the boat is stopping or travelling slowly.

The Quietlife exhaust flap is adjustable to two different sizes. A stainless steel hose clip is also supplied, which can adjust to secure the exhaust flap whether it is at standard size or cut size.

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Customer ReviewsAdd a review

Fast Send, Good Product, How To Modify
"Used to replace stainless exhaust flapper on Catalina 30 / M25XP. External flange is about 1 5/8" (42mm). This is the smallest flapper available (40-51mm). Initially I tried tightening the clamp to size but it distorted the rubber flapper and prevented proper functioning. I then cut a "ring" from a 2" (50mm) od, 1.5" (38mm) id wireless rubber exhaust hose, cut a very small slit, and used it as a "gasket" to build up the size of the exhaust flange. Worked like a champ with no distortion at all."
Don Dame
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