CELEBRATING 80 YEARS: 1944-2024
THRU HULLS

THRU HULLS

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Sea-Dog Thru-Hulls are constructed of white injection molded polypropylene and designed to allow water to pass in or out of a vessel. For use with hose for drainage above the water line. Ideal for salt water applications and are impervious to electrolysis and corrosion. Sold individually or in bulk packs of 10.

Dimensions (Click to expand):

PART # A B C D E F (HOSE SIZE)
SEA520740 1-3/4" 1/2" 1-11/16" 3-1/2" 1" 5/8"
SEA520750 1-13/16" 1/2" 1-11/16" 3-1/2" 1" 3/4"
SEA520770 2-3/16" 15/16" 1-3/4" 3-9/16" 1-3/8" 1-1/8" - 1-1/4"
SEA520790 2-7/8" 1-3/16" 2-5/16" 4-3/16" 1-13/16" 1-1/2"

PLASTIC THRU HULL 5/8" BULK
SEA520740
Available: 7
$3.69
PLASTIC THRU HULL 5/8"
SEA520740-1
Available: 21
$6.19
PLASTIC THRU HULL 3/4" BULK
SEA520750
Available: 22
$3.69
PLASTIC THRU HULL 3/4"
SEA520750-1
Available: 61
$6.19
PLASTIC THRU HULL 1-1/8" BULK
SEA520770
Available: 15
$6.79
PLASTIC THRU HULL 1-1/8"
SEA520770-1
Available: 46
$9.29
PLASTIC THRU HULL 1-1/2" BULK
SEA520790
Available: 7
$9.19
PLASTIC THRU HULL 1-1/2"
SEA520790-1
Available: 33
$11.00