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Orders received during this time will be processed when we resume normal business hours on Thursday, January 2nd.

Thank YOU for another great year and we are looking forward to keeping you on the water in 2025!
Merry Christmas, Happy New Year and God Bless YOU!

PLEASE NOTE - Some products are not immediately available. If your order will be delayed, we will e-mail you or call you and let you know.
E-MAIL US HERE about availability and we will respond quickly! We ship same day if your order was placed by 1:00 PM EST during normal business hours BASED ON AVAILABILITY.
NEXT DAY SHIPPING NOTE - Please see our Shipping Policy SATURDAY OR SUNDAY DELIVERY IS NOT AN OPTION.

Flapper Exhaust Protector Valve With Clamp "5 & 6" SIERRA-18-4458 - CLEARANCED

$70.00 $72.99


Exhaust protector valve mounts on the outside of 5 in. & 6 in. exhaust tip to prevent backflow of water into the exhaust.

  • For 5 and 6 in. diameter exhaust thru hulls
  • Prevents backflow of water into exhaust system
  • Stainless steel clamp included
  • Designed to mount on the outside of exhaust tips
  • Replaces Mallory 9-44002