WATER SYSTEMS 27
attwoodmarine.com
Stainless Steel Straight Thru-Hulls, Threaded • Unique multi-thread design with NPSM and NPT threads • Offer generous thread length • Allows for direct connection to seacocks or pipes Caution: Stainless Steel Thru-Hull Connectors are designed for installation above the water line only.
A
B
C
66559
A Flange Dia. 1-7/8" 2-1/4"
B Thread O.D. 2-1/8" 2-1/4" 2-3/8"
C Total Length 2-1/2" 2-5/8" 2-3/4"
Installation Hole Saw Size
Max Hull Thickness
OEM Part # without Gasket
Threads NPSM
Part #
66559-1 66561-1 66563-1
1-1/8" 1-3/8"
3/4"
1-5/8" 1-3/4" 1-7/8"
— — —
1"
3"
2"
1-1/2"
66558G
Stainless Steel 90° Thru-Hulls, Barbed Allows installation in especially tight spaces.
Caution: Stainless Steel Thru-Hull Connectors are designed for installation above the water line only.
B
C
E
Dia. B
A
D
F
66577
A Hose Size
B Flange Dia. 1-7/8"
C Thread O.D.
D Thread Length 1-1/2"
E Barb Length
F Total Length 3-3/8" 4-3/8"
Install. Hole Saw Size
Max Hull Thick.
OEM Part # without Gasket
Thread NPSM
Part #
1-1/16" 66577-1
3/4" I.D.
1"
3/4" 3/4"
1-1/4" 1-5/8"
3/4"
— —
66579-1
1-1/8" I.D. 2-1/4"
1-3/8" 1-7/8"
1"
1-1/4"
Stainless Steel Scupper Valves • The Scupper Flap is tough neoprene rubber with a molded V that fits into the grooved body to reduce backwash • Fasteners are concealed and corrosion-proof • Enhanced 316 Stainless Steel Alloy Caution: Stainless Steel Scupper Valves are designed for installation above the water line only.
C
B
A
D
E
Dia. C
F
A Hose Size
B Thread Dia.
C Flange O.D.
D Thread Length
E Barb Length
F Total Length
Install. Hole Saw Size
Max Hull Thick.
OEM Part # without Gasket
66565
Thread NPSM
Part #
Threaded —
66565-1 66567-1
1-7/8"
3"
3-1/2"
— —
3-7/8" 2-7/8"
2"
1-1/2"
3" 2"
— —
—
2-23/64" 3-5/8" 2-1/2"
2-1/2"
2"
Barbed 1-1/2"
66553-1 66553-3
1-7/8"
3"
3-1/2"
1-1/2"
5-1/2"
2"
1-1/2"
3" 2"
66555-1
2"
2-23/64" 3-5/8" 2-1/2"
1-5/16" 4-1/2"
2-1/2"
2"
— —
1-3/4" 66557-1
1-1/2"
3"
1-7/8" 2-1/4"
1-1/2"
4-1/2"
2"
1-1/2"
Valve Accessories
BULK
66553Kit 66555Kit
Replacement Flappers for 1-1/2" Replacement Flappers for 2"
— —
66557G
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