Skip to content
Spend $1000+ Receive Free 2 Day Shipping!
Spend $1000+ Receive Free 2 Day Shipping!

Marine Plumbing & Ventilation - Thru-Hull Fittings

Original price $35.86
Original price $35.86 - Original price $35.86
Original price $35.86
Current price $17.99
$17.99 - $17.99
Current price $17.99

Perko 3-1/2" x 2-1/2" Scoop Strainer Bronze MADE IN THE USA [0066DP1PLB]

Perko
In stock

Perko 3-1/2" X 2-1/2" Scoop Strainer BronzeCast bronzeMachine slotsTechnical Information: For Thru-Hull Size Inches: 3/8 & 1/2 Dimensions Str...

View full details
Original price $35.86
Original price $35.86 - Original price $35.86
Original price $35.86
Current price $17.99
$17.99 - $17.99
Current price $17.99
Save 50% Save %
Original price $16.19
Original price $16.19 - Original price $16.19
Original price $16.19
Current price $3.99
$3.99 - $3.99
Current price $3.99

Perko 1-1/8" Thru-Hull Fitting f/ Hose Plastic MADE IN THE USA [0328DP6A]

Perko
In stock

Perko 1-⅛" Thru-Hull Fitting f/ Hose Plastic Molded White Plastic Broad FlangeTechnical Information: Hose Size Inches: 1-1/8 Mounting Hole Diame...

View full details
Original price $16.19
Original price $16.19 - Original price $16.19
Original price $16.19
Current price $3.99
$3.99 - $3.99
Current price $3.99
Save 75% Save %
Original price $8.06
Original price $8.06 - Original price $8.06
Original price $8.06
Current price $3.99
$3.99 - $3.99
Current price $3.99

Perko 3/4" Thru-Hull Fitting f/ Hose Plastic MADE IN THE USA [0328DP5]

Perko
In stock

Perko 3/4" Thru-Hull Fitting f/ Hose Plastic Molded White Plastic Broad FlangeTechnical Information: Hose Size Inches: 3/4 Mounting Hole Diamete...

View full details
Original price $8.06
Original price $8.06 - Original price $8.06
Original price $8.06
Current price $3.99
$3.99 - $3.99
Current price $3.99
Save 50% Save %
Original price $8.86
Original price $8.86 - Original price $8.86
Original price $8.86
Current price $5.99
$5.99 - $5.99
Current price $5.99

Perko 3/4" Thru-Hull Fitting f/Hose - Plastic Narrow Flange [0301DP5]

Perko
In stock

3/4" Thru-Hull Fitting f/Hose - Plastic Narrow FlangeFeatures: Molded white Narrow Flange Specifications: Hose Size: 3/4" Mounting Hole Diameter: ...

View full details
Original price $8.86
Original price $8.86 - Original price $8.86
Original price $8.86
Current price $5.99
$5.99 - $5.99
Current price $5.99
Save 32% Save %
Original price $7.57
Original price $7.57 - Original price $7.57
Original price $7.57
Current price $5.99
$5.99 - $5.99
Current price $5.99

Perko 5/8" Thru-Hull Fitting f/ Hose Plastic MADE IN THE USA [0328DP4A]

Perko
In stock

Perko 5/8" Thru-Hull Fitting f/ Hose Plastic Molded White Plastic Broad FlangeTechnical Information: Hose Size Inches: 5/8 Mounting Hole Diamete...

View full details
Original price $7.57
Original price $7.57 - Original price $7.57
Original price $7.57
Current price $5.99
$5.99 - $5.99
Current price $5.99
Save 21% Save %
Original price $60.09
Original price $60.09 - Original price $60.09
Original price $60.09
Current price $36.99
$36.99 - $36.99
Current price $36.99

Perko Thru-Hull Scupper f/Mounting Through Transom [0323DP]

Perko
In stock

Thru-Hull Scupper for Mounting Through TransomFeatures: Molded White Polymer Soft Black Flapper Nut and Mounting Hardware Included Specifications:...

View full details
Original price $60.09
Original price $60.09 - Original price $60.09
Original price $60.09
Current price $36.99
$36.99 - $36.99
Current price $36.99
Save 38% Save %
Original price $21.76
Original price $21.76 - Original price $21.76
Original price $21.76
Current price $6.99
$6.99 - $6.99
Current price $6.99

Perko 1-1/2" Thru-Hull Fitting f/Hose Plastic MADE IN THE USA [0328DP8]

Perko
In stock

Perko 1-1/2" Thru-Hull Fitting for Hose Plastic Molded White Plastic Broad FlangeTechnical Information: Hose Size Inches: 1-1/2 Mounting Hole Di...

View full details
Original price $21.76
Original price $21.76 - Original price $21.76
Original price $21.76
Current price $6.99
$6.99 - $6.99
Current price $6.99
Save 68% Save %
Original price $22.00
Original price $22.00 - Original price $22.00
Original price $22.00
Current price $14.99
$14.99 - $14.99
Current price $14.99

GROCO 1/2" NPS NPT Combo Stainless Steel Thru-Hull Fitting w/Nut [TH-500-WS]

GROCO
In stock

1/2" NPS NPT Combo Stainless Steel Thru-Hull Fitting with NutFeatures: NPSM / NPT combination thread #316 Stainless Steel Sizes from 1/2" to 3" UL...

View full details
Original price $22.00
Original price $22.00 - Original price $22.00
Original price $22.00
Current price $14.99
$14.99 - $14.99
Current price $14.99
Save 32% Save %
Original price $60.00
Original price $60.00 - Original price $60.00
Original price $60.00
Current price $39.99
$39.99 - $39.99
Current price $39.99

GROCO 1-1/4" Bronze High Speed Thru-Hull Fitting w/Nut [HSTH-1250-W]

GROCO
In stock

1-1/4" Bronze High Speed Thru-Hull Fitting w/Nut Features: Designed for increased flow compared to standard Thru Hulls and with less drag NPSM / N...

View full details
Original price $60.00
Original price $60.00 - Original price $60.00
Original price $60.00
Current price $39.99
$39.99 - $39.99
Current price $39.99
Save 33% Save %
Original price $88.08
Original price $88.08 - Original price $88.08
Original price $88.08
Current price $45.99
$45.99 - $45.99
Current price $45.99

Perko 1-1/8" Thru-Hull Fitting f/ Hose Bronze Made in the USA [035006ADPP]

Perko
In stock

Perko 1-1/8" Thru-Hull Connection f/ use with Hose BronzeFlange is machined to fit and grooved to retain bedding compound neck is threaded to appr...

View full details
Original price $88.08
Original price $88.08 - Original price $88.08
Original price $88.08
Current price $45.99
$45.99 - $45.99
Current price $45.99
Save 48% Save %
Original price $97.00
Original price $97.00 - Original price $97.00
Original price $97.00
Current price $64.99
$64.99 - $64.99
Current price $64.99

GROCO 2" Bronze High Speed Thru-Hull Fitting w/Nut [HSTH-2000-W]

GROCO
In stock

2" Bronze High Speed Thru-Hull Fitting w/Nut Features: Designed for increased flow compared to standard Thru Hulls and with less drag NPSM / NPT c...

View full details
Original price $97.00
Original price $97.00 - Original price $97.00
Original price $97.00
Current price $64.99
$64.99 - $64.99
Current price $64.99
Save 33% Save %
Original price $33.00
Original price $33.00 - Original price $33.00
Original price $33.00
Current price $21.99
$21.99 - $21.99
Current price $21.99

GROCO 1" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut [TH-1000-W]

GROCO
In stock

1" NPS NPT Combo Bronze Thru-Hull Fitting with NutFeatures: NPSM / NPT combination thread C83600 Bronze Sizes from 1/2" to 5" UL Listed 647B Avail...

View full details
Original price $33.00
Original price $33.00 - Original price $33.00
Original price $33.00
Current price $21.99
$21.99 - $21.99
Current price $21.99
Save 33% Save %
Original price $50.00
Original price $50.00 - Original price $50.00
Original price $50.00
Current price $33.99
$33.99 - $33.99
Current price $33.99

GROCO 1" Bronze Extra Long Thru-Hull Fitting w/Nut [THXL-1000-W]

GROCO
In stock

1" Bronze Extra Long Thru-Hull Fitting w/Nut Features: Extra long NPSM / NPT combination thread C83600 Bronze Specifications: Hose Size: 1" Mater...

View full details
Original price $50.00
Original price $50.00 - Original price $50.00
Original price $50.00
Current price $33.99
$33.99 - $33.99
Current price $33.99
Save 32% Save %
Original price $67.00
Original price $67.00 - Original price $67.00
Original price $67.00
Current price $44.99
$44.99 - $44.99
Current price $44.99

GROCO 1-1/4" NPS NPT Combo Stainless Steel Thru-Hull Fitting w/Nut [TH-1250-WS]

GROCO
In stock

1-1/4" NPS NPT Combo Stainless Steel Thru-Hull Fitting with NutFeatures: NPSM / NPT combination thread #316 Stainless Steel Sizes from 1/2" to 3" ...

View full details
Original price $67.00
Original price $67.00 - Original price $67.00
Original price $67.00
Current price $44.99
$44.99 - $44.99
Current price $44.99
Save 33% Save %
Original price $34.00
Original price $34.00 - Original price $34.00
Original price $34.00
Current price $22.99
$22.99 - $22.99
Current price $22.99

GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 3/4" [HTH-750-S]

GROCO
In stock

Stainless Steel Hose Barb Thru-Hull Fitting - 3/4" Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Specifications: ...

View full details
Original price $34.00
Original price $34.00 - Original price $34.00
Original price $34.00
Current price $22.99
$22.99 - $22.99
Current price $22.99
Save 32% Save %
Original price $162.00
Original price $162.00 - Original price $162.00
Original price $162.00
Current price $107.99
$107.99 - $107.99
Current price $107.99

GROCO 2" Bronze Combo Scoop Thru-Hull w/Nut [STH-2000-W]

GROCO
In stock

2" Bronze Combo Scoop Thru-Hull w/Nut Features: Designed for increased flow compared to standard Thru Hulls NPSM / NPT combination thread C83600 B...

View full details
Original price $162.00
Original price $162.00 - Original price $162.00
Original price $162.00
Current price $107.99
$107.99 - $107.99
Current price $107.99
Save 33% Save %
Original price $96.00
Original price $96.00 - Original price $96.00
Original price $96.00
Current price $63.99
$63.99 - $63.99
Current price $63.99

GROCO 1-1/2" Bronze Combo Scoop Thru-Hull w/Nut [STH-1500-W]

GROCO
In stock

1-1/2" Bronze Combo Scoop Thru-Hull w/Nut Features: Designed for increased flow compared to standard Thru Hulls NPSM / NPT combination thread C836...

View full details
Original price $96.00
Original price $96.00 - Original price $96.00
Original price $96.00
Current price $63.99
$63.99 - $63.99
Current price $63.99
Save 33% Save %
Original price $34.00
Original price $34.00 - Original price $34.00
Original price $34.00
Current price $22.99
$22.99 - $22.99
Current price $22.99

GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 5/8" [HTH-625-S]

GROCO
In stock

Stainless Steel Hose Barb Thru-Hull Fitting - 5/8" Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Specifications: ...

View full details
Original price $34.00
Original price $34.00 - Original price $34.00
Original price $34.00
Current price $22.99
$22.99 - $22.99
Current price $22.99
Save 32% Save %
Original price $94.00
Original price $94.00 - Original price $94.00
Original price $94.00
Current price $62.99
$62.99 - $62.99
Current price $62.99

GROCO 2" NPS NPT Combo Stainless Steel Thru-Hull Fitting w/Nut [TH-2000-WS]

GROCO
In stock

2" NPS NPT Combo Stainless Steel Thru-Hull Fitting with NutFeatures: NPSM / NPT combination thread #316 Stainless Steel Sizes from 1/2" to 3" UL L...

View full details
Original price $94.00
Original price $94.00 - Original price $94.00
Original price $94.00
Current price $62.99
$62.99 - $62.99
Current price $62.99
Save 33% Save %
Original price $47.00
Original price $47.00 - Original price $47.00
Original price $47.00
Current price $31.99
$31.99 - $31.99
Current price $31.99

GROCO Bronze Hose Barb Thru-Hull Fitting - 1-1/8" [HTH-1125]

GROCO
In stock

Bronze Hose Barb Thru-Hull Fitting - 1-1/8" Features: NPS Thread With Hose Connection C83600 Bronze UL Listed 647B Specifications: Hose Size: 1-1...

View full details
Original price $47.00
Original price $47.00 - Original price $47.00
Original price $47.00
Current price $31.99
$31.99 - $31.99
Current price $31.99
Save 32% Save %
Original price $71.00
Original price $71.00 - Original price $71.00
Original price $71.00
Current price $47.99
$47.99 - $47.99
Current price $47.99

GROCO 1-1/2" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut [TH-1500-W]

GROCO
In stock

1-1/2" NPS NPT Combo Bronze Thru-Hull Fitting with NutFeatures: NPSM / NPT combination thread C83600 Bronze Sizes from 1/2" to 5" UL Listed 647B A...

View full details
Original price $71.00
Original price $71.00 - Original price $71.00
Original price $71.00
Current price $47.99
$47.99 - $47.99
Current price $47.99
Save 32% Save %
Original price $55.00
Original price $55.00 - Original price $55.00
Original price $55.00
Current price $36.99
$36.99 - $36.99
Current price $36.99

GROCO 1-1/4" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut [TH-1250-W]

GROCO
In stock

1-1/4" NPS NPT Combo Bronze Thru-Hull Fitting with NutFeatures: NPSM / NPT combination thread C83600 Bronze Sizes from 1/2" to 5" UL Listed 647B A...

View full details
Original price $55.00
Original price $55.00 - Original price $55.00
Original price $55.00
Current price $36.99
$36.99 - $36.99
Current price $36.99
Save 33% Save %
Original price $209.01
Original price $209.01 - Original price $209.01
Original price $209.01
Current price $89.99
$89.99 - $89.99
Current price $89.99

Perko 2" Thru-Hull Fitting w/Pipe Thread Bronze MADE IN THE USA [0322009PLB]

Perko
In stock

Perko 2" Thru-Hull Fitting w/ Pipe Thread BronzeFlange is machined to fit hull and grooved to retain bedding compound. Neck is threaded to approx...

View full details
Original price $209.01
Original price $209.01 - Original price $209.01
Original price $209.01
Current price $89.99
$89.99 - $89.99
Current price $89.99
Save 57% Save %
Original price $99.99
Original price $99.99 - Original price $99.99
Original price $99.99
Current price $71.99
$71.99 - $71.99
Current price $71.99

Attwood Stainless Steel Scupper Valve Barbed - 1-1/2" Hose Size [66553-3]

Attwood Marine
In stock

Stainless Steel Scupper Valve Barbed - 1-1/2" Hose SizePolish your image with these beautiful, durable stainless steel fittings. Why specify plast...

View full details
Original price $99.99
Original price $99.99 - Original price $99.99
Original price $99.99
Current price $71.99
$71.99 - $71.99
Current price $71.99
Save 28% Save %