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Thru-Hull Vents & Drains

These thru-hull fittings are designed for use above the water line to allow ballast systems to drain and vent over the side of the boat. Available in a range of finishes and sizes to meet the needs of your ballast system, and to match the factory thru-hull connectors already installed on your boat.

10 Item(s)

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3M 4000 Marine Adhesive

$14.99
3M 4000 Marine Adhesive creates a water-tight seal when installing thru-hull fittings below or above the water, creates a non-corrosive connection that is semi-permanent.
Item #:
37003

90 Degree Thru Hull Fitting - Composite/Stainless

$9.99
Complete your ballast system installation with this high quality composite thru-hull fitting with stainless steel cap.
Item #:
36001

90 Degree Thru Hull Fitting - Stainless

$21.99
Complete your ballast system installation with this OEM matching stainless steel thru-hull fitting for tight installs.
Item #:
36002

Attwood Clear Silicone Marine Adhesive

$13.99
Silicone Marine Adhesive bonds to all common boat materials, making it perfect for installation of thru-hull fittings.
Item #:
37002

Common Size Thru Hull Fitting - Stainless Steel

$14.99
Common-size thru-hull connector for 3/4", 1" and 1-1/8" hose has the same external size for a uniform look, no matter what size hose you're using.
Item #:
36006

Thru Hull Fitting - Black

$5.99
Complete your ballast system installation with this OEM matching black plastic thru-hull fitting for 3/4", 1" and 1-1/8" hose.
Item #:
36004

Thru Hull Fitting - Stainless Steel

$13.99
Complete your ballast system installation with this OEM matching stainless steel thru-hull fitting for 3/4", 1" and 1-1/8" hose.
Item #:
36003

Thru-hull Fitting - Chrome

$7.99
Complete your ballast system installation with this OEM matching chrome thru-hull fitting for 3/4" or 1-1/8" hose.
Item #:
36005

Thru-hull Hole Saw Bits

$16.99
Make your next ballast installation project a breeze with these perfectly sized hole-saw bits.
Item #:
37031

WakeMAKERS Thru-Hull Location Pinpoint Magnets (Pair)

$4.99
The WakeMAKERS location magnets are perfect for pinpointing the exact spot where the you need to drill into your hull.
Item #:
37036

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