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Marine Plumbing & Ventilation - Thru-Hull Fittings

72 total items

GROCO 3/4" Bronze Extra Long Thru-Hull Fitting w/Nut [THXL-750-W]

SKU: 75343

3/4" Bronze Extra Long Thru-Hull Fitting w/Nut Features: Extra long NPSM / NPT combination thread C83600 Bronze Specifications: Hose Size: 3/4" Material: Bronze Box Dimensions: 3"H x 3"W x 7"L WT:...

GROCO 3/4" Bronze Extra Long Thru-Hull Fitting w/Nut [THXL-750-W]

SKU: 75343
in stock
18 in stock

Sale price $21.99

Save $9.01

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

SKU: 75380

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 combination thread C83600 Bronze Specifications: Hose Size: 2"...

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

SKU: 75380
in stock
5 in stock

Sale price $53.99

Save $23.01

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

SKU: 66633

3/4" Thru-Hull Fitting f/Hose - Plastic Narrow FlangeFeatures: Molded white Narrow Flange Specifications: Hose Size: 3/4" Mounting Hole Diameter: 1" Max. Hull Thickness: 1-7/16" O.D. Flange: 1-1/2" Specifications: Hose Size:...

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

SKU: 66633
in stock
24 in stock

Sale price $4.99

Save $2.20

GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 1" [HTH-1000-S]

SKU: 75225

Stainless Steel Hose Barb Thru-Hull Fitting - 1" Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Specifications: Hose Size: 1" Material: Stainless Steel Box Dimensions: 3"H x...

GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 1" [HTH-1000-S]

SKU: 75225
in stock
6 in stock

Sale price $19.99

Save $8.01

GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/2" [HTH-1500-S]

SKU: 75228

Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/2" Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Specifications: Hose Size: 1-1/2" Material: Stainless Steel Box Dimensions: 5"H x...

GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/2" [HTH-1500-S]

SKU: 75228
in stock
11 in stock

Sale price $38.99

Save $17.01

Perko 1/2" Thru-Hull Fitting f/ Hose Plastic MADE IN THE USA [0328DP4]

SKU: 39173

Perko 1/2" Thru-Hull Fitting f/ Hose Plastic Molded White Plastic Broad FlangeTechnical Information: Hose Size Inches: 1/2 Mounting Hole Diameter Inches: 13/16 Maximum Hull Thickness Inches: 1-1/4 O.D. Flange Inches:...

Perko 1/2" Thru-Hull Fitting f/ Hose Plastic MADE IN THE USA [0328DP4]

SKU: 39173
in stock
46 in stock

Sale price $2.99

Save $3.14

GROCO 1" NPS NPT Combo Stainless Steel Thru-Hull Fitting w/Nut [TH-1000-WS]

SKU: 74301

1" NPS NPT Combo Stainless Steel Thru-Hull Fitting with NutFeatures: NPSM / NPT combination thread #316 Stainless Steel Sizes from 1/2" to 3" UL Listed 647B BSPP and Stainless Steel models...

GROCO 1" NPS NPT Combo Stainless Steel Thru-Hull Fitting w/Nut [TH-1000-WS]

SKU: 74301
in stock
4 in stock

Sale price $29.99

Save $13.01

GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 2" [HTH-2000-S]

SKU: 75229

Stainless Steel Hose Barb Thru-Hull Fitting - 2" Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Specifications: Hose Size: 2" Material: Stainless Steel Box Dimensions: 5"H x...

GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 2" [HTH-2000-S]

SKU: 75229
in stock
3 in stock

Sale price $47.99

Save $21.01

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

SKU: 39175

Perko 3/4" Thru-Hull Fitting f/ Hose Plastic Molded White Plastic Broad FlangeTechnical Information: Hose Size Inches: 3/4 Mounting Hole Diameter Inches: 1 Maximum Hull Thickness Inches: 1-7/16 O.D. Flange Inches:...

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

SKU: 39175
in stock
28 in stock

Sale price $2.99

Save $3.54

GROCO Bronze Hose Barb Thru-Hull Fitting - 1/2" [HTH-500]

SKU: 75214

Bronze Hose Barb Thru-Hull Fitting - 1/2" Features: NPS Thread With Hose Connection C83600 Bronze UL Listed 647B Specifications: Hose Size: 1/2" Material: Bronze Box Dimensions: 3"H x 3"W x 4"L...

GROCO Bronze Hose Barb Thru-Hull Fitting - 1/2" [HTH-500]

SKU: 75214
in stock
15 in stock

Sale price $12.99

Save $5.01

GROCO 1/2" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut [TH-500-W]

SKU: 74289

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 Available with (-W) or without nut (-L) BSPP...

GROCO 1/2" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut [TH-500-W]

SKU: 74289
in stock
14 in stock

Sale price $12.99

Save $5.01

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

SKU: 39174

Perko 5/8" Thru-Hull Fitting f/ Hose Plastic Molded White Plastic Broad FlangeTechnical Information: Hose Size Inches: 5/8 Mounting Hole Diameter Inches: 13/16 Maximum Hull Thickness Inches: 1-1/4 O.D. Flange Inches:...

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

SKU: 39174
in stock
1 in stock

Sale price $4.99

Save $1.14

GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 1/2" [HTH-500-S]

SKU: 75222

Stainless Steel Hose Barb Thru-Hull Fitting - 1/2" Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Specifications: Hose Size: 1/2" Material: Stainless Steel Box Dimensions: 3"H x...

GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 1/2" [HTH-500-S]

SKU: 75222
in stock
13 in stock

Sale price $18.99

Save $8.01

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

SKU: 75224

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

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

SKU: 75224
in stock
4 in stock

Sale price $15.99

Save $7.01

GROCO 1-1/2" Bronze Extra Long Thru-Hull Fitting w/Nut [THXL-1500-W]

SKU: 75346

1-1/2" Bronze Extra Long Thru-Hull Fitting w/Nut Features: Extra long NPSM / NPT combination thread C83600 Bronze Specifications: Hose Size: 1-1/2" Material: Bronze Box Dimensions: 3"H x 3"W x 6"L WT:...

GROCO 1-1/2" Bronze Extra Long Thru-Hull Fitting w/Nut [THXL-1500-W]

SKU: 75346
in stock
2 in stock

Sale price $54.99

Save $23.01

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

SKU: 75223

Stainless Steel Hose Barb Thru-Hull Fitting - 5/8" Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B Specifications: Hose Size: 5/8" Material: Stainless Steel Box Dimensions: 3"H x...

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

SKU: 75223
in stock
4 in stock

Sale price $15.99

Save $7.01

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

SKU: 75378

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 / NPT combination thread C83600 Bronze Specifications: Hose Size: 1-1/4"...

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

SKU: 75378
in stock
3 in stock

Sale price $31.99

Save $14.01

Perko 1-1/2" Thru-Hull Fitting f/ Hose Bronze Made in the USA [0350008DPP]

SKU: 39188

Perko 1-1/2" Thru-Hull Connection f/ use with Hose BronzeFlange is machined to fit and grooved to retain bedding compound neck isthreaded to approximately 3/16 inch from flange. Cast bronze, plain...

Perko 1-1/2" Thru-Hull Fitting f/ Hose Bronze Made in the USA [0350008DPP]

SKU: 39188
in stock
5 in stock

Sale price $52.99

Save $80.77

GROCO 2" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut [TH-2000-W]

SKU: 74298

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 Available with (-W) or without nut (-L) BSPP...

GROCO 2" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut [TH-2000-W]

SKU: 74298
in stock
2 in stock

Sale price $62.99

Save $27.01

Attwood Plastic Thru-Hull Fitting - 1-1/2" - White [3875-3]

SKU: 67101

Plastic Thru-Hull Fitting - 1-1/2" - WhiteThese thru-hulls are made with a durable, thermoplastic construction which prevents electrolysis. Caution: Thru-Hull connectors are designed for installation above the water line only.Specifications: Fits...

Attwood Plastic Thru-Hull Fitting - 1-1/2" - White [3875-3]

SKU: 67101
in stock
4 in stock

Sale price $6.99

Save $4