Thru-Hull Fittings
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Attwood Marine Thru Hull SS 1-1/8" 66549-3
Attwood Marine
$55.59 $27.67Attwood Marine Thru Hull SS 1-1/8" 66549-3Cast from 316 stainless steel. A channel under the flange holds a bead of sealant. All models have wrench flats or an end notch. Designed for installation above the water line only. Lifetime warranty.- Part Number:
- 23-665493
- Availability:
- In Stock - Ships same or next business day.
- Hose:
- 1-1/8"
- Flange:
- 2-1/4"
- Max Hull Thickness:
- 1-3/4"
$55.59 $27.67 -
Attwood Marine Thru Hull SS 3/4" 66547-3
Attwood Marine
$40.99 $20.03Attwood Marine Thru Hull SS 3/4" 66547-3Cast from 316 stainless steel. A channel under the flange holds a bead of sealant. All models have wrench flats or an end notch. Designed for installation above the water line only. Lifetime warranty.- Part Number:
- 23-665473
- Availability:
- In Stock - Ships same or next business day.
- Hose:
- 3/4"
- Flange:
- 1-7/8"
- Max Hull Thickness:
- 1-5/8"
$40.99 $20.03 -
GROCO 1-1/2" Bronze Extra Long Thru-Hull Fitting w/Nut THXL-1500-W
Groco
$90.00 $55.931-1/2" NPS NPT Combo XL Bronze Thru Hull Features: Extra long NPSM / NPT combination thread C83600 Bronze Sizes from 3/4" to 2" Available with or without nut Stainless Steel models availab- Part Number:
- 34-THXL1500W
- Availability:
- In Stock - Ships same or next business day.
- Thread NPS:
- 1-1/2"
- A:
- 5.45
- B:
- 0.3
- C:
- 2.89
$90.00 $55.93 -
Groco 2-1/2" NPS NPT Combo Bronze Thru Hull Th-2500-W
Groco
$209.00 $144.792-1/2" NPS NPT Combo Bronze Thru Hull Features: NPSM / NPT combination thread C83600 Bronze Sizes from 1/2" to 5" UL Listed 647B Available with (-W) or without nut (-L) BSPP and Stainless Steel models available- Part Number:
- 34-TH2500W
- Availability:
- In Stock - Ships same or next business day.
- Thread:
- 2 1/2"
- A:
- 3.56
- B:
- 0.42
- C:
- 4.4
$209.00 $144.79 -
GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 3/4" HTH-750-S
Groco
$24.00 $20.343/4" Hose Barb Stainless Hose Thru Hull Features: NPS Thread With Hose Connection #316 Stainless Steel Sizes from 1/2" to 2" Barb UL Listed 647B- Part Number:
- 34-HTH750S
- Availability:
- In Stock - Ships same or next business day.
- Thread NPS:
- 3/4"
- Hose ID:
- 3/4"
- A:
- 2.7
- B:
- 0.3
- C:
- 1.9
- D:
- 1.2
- E:
- 1.3
$24.00 $20.34 -
Sea-Dog Line Thru-Hull Fitting 5/8" 520740-1
SEA-DOG LINE
$6.15 $5.05Sea-Dog Line Thru-Hull Fitting 5/8" 520740-1Injection molded polypropylene.- Part Number:
- 354-5207401
- Availability:
- In Stock - Ships same or next business day.
- A:
- 1-3/4"
- B:
- 1/2"
- C:
- 1-11/16"
- D:
- 3-1/2"
- E:
- 1"
- F:
- 5/8"
$6.15 $5.05 -
On Sale
GROCO 1" Bronze High Speed Thru-Hull Fitting w/Nut HSTH-1000-W
Groco
$33.00 $21.781" NPS NPT Combo High Speed Pickup Features: Designed for increased flow compared to standard Thru Hulls and with less drag NPSM / NPT combination thread C83600 Bronze Sizes from 3/4" to 3" Available with or without nut BSPP models...- Part Number:
- 34-HSTH1000W
- Availability:
- In Stock - Ships same or next business day.
- Thread NPS:
- 1"
- A:
- 2.85
- B:
- 0.3
- C:
- 2.32
$33.00 $21.78 -
Groco 1" BSPP Bronze Thru Hull Th-100-W
Groco
$33.00 $22.311" BSPP Bronze Thru Hull Features: British Standard Pipe Parallel (BSPP) Thread C83600 Bronze Sizes from 1/2" to 4" UL Listed 647B Available with or without nut- Part Number:
- 34-TH100W
- Availability:
- In Stock - Ships same or next business day.
- Thread BSPP:
- 1"
- A:
- 72.4
- B:
- 7.62
- C:
- 58.93
$33.00 $22.31 -
GROCO 1-1/2" NPS NPT Combo Stainless Steel Thru-Hull Fitting w/Nut TH-1500-WS
Groco
$69.00 $48.641-1/2" NPS NPT Combo Stainless Steel Thru-Hull Fitting with Nut Features: NPSM / NPT combination thread #316 Stainless Steel Sizes from 1/2" to 3" UL Listed 647B BSPP and Stainless Steel models available- Part Number:
- 34-TH1500WS
- Availability:
- In Stock - Ships same or next business day.
- Thread NPS:
- 1-1/2"
- A:
- 3.15
- B:
- 0.3
- C:
- 2.89
$69.00 $48.64 -
GROCO 3/4" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut TH-750-W
Groco
$17.99 $14.423/4" NPS NPT Combo Bronze Thru-Hull Fitting with Nut Features: NPSM / NPT combination thread C83600 Bronze Sizes from 1/2" to 5" UL Listed 647B Available with (-W) or without nut (-L) BSPP and Stainless Steel models available- Part Number:
- 34-TH750W
- Availability:
- In Stock - Ships same or next business day.
- Thread NPS:
- 3/4"
- A:
- 2.2
- B:
- 0.3
- C:
- 1.9
$17.99 $14.42 -
Groco 3/4" BSPP Bronze Thru Hull Th-75-W
Groco
$23.00 $15.543/4" BSPP Bronze Thru Hull Features: British Standard Pipe Parallel (BSPP) Thread C83600 Bronze Sizes from 1/2" to 4" UL Listed 647B Available with or without nut- Part Number:
- 34-TH75W
- Availability:
- In Stock - Ships same or next business day.
- Thread BSPP:
- 3/4"
- A:
- 55.9
- B:
- 7.62
- C:
- 48.26
$23.00 $15.54 -
GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 2" HTH-2000-S
Groco
$104.00 $63.72Stainless Steel Hose Barb Thru-Hull Fitting - 2" Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B- Part Number:
- 34-HTH2000S
- Availability:
- In Stock - Ships same or next business day.
- Thread NPS:
- 2"
- Hose ID:
- 2"
- A:
- 2.8
- B:
- 0.3
- C:
- 3.3
- D:
- 1.1
- E:
- 1.3
$104.00 $63.72 -
Groco Thru Hull Flush with Nut 1-1/2" Fth-1500-W
Groco
$71.00 $48.671-1/2" NPS NPT Combo Flush Thru Hull Features: Machined flat face for flush mount or dripless applications NPSM / NPT combination thread C84400 Bronze Sizes from 1/2" to 5" Available with or without nut- Part Number:
- 34-FTH1500W
- Availability:
- In Stock - Ships same or next business day.
- Thread NPS:
- 1-1/2"
- A:
- 3.5
- B:
- 0.3
- C:
- 3.2
$71.00 $48.67 -
Groco Thru Hull Flush with Nut 3/4" Fth-750-W
Groco
$23.00 $15.163/4" NPS NPT Combo Flush Thru Hull Features: Machined flat face for flush mount or dripless applications NPSM / NPT combination thread C84400 Bronze Sizes from 1/2" to 5" Available with or without nut- Part Number:
- 34-FTH750W
- Availability:
- In Stock - Ships same or next business day.
- Thread NPS:
- 3/4"
- A:
- 2.31
- B:
- 0.3
- C:
- 2
$23.00 $15.16 -
Seachoice 4-Long Thru-Hull 3/4 -White Pla 18161
Seachoice
$6.99 $4.97Seachoice 4-Long Thru-Hull 3/4 -White Pla 18161 Extra long molded high impact white plastic with broad flangeDesigned for installation where thick transoms or side walls require up to 2-1/2" long threadNot recommended for use below the waterline.- Part Number:
- 50-18161
- Availability:
- In Stock - Ships same or next business day.
- Hose:
- 3/4"
- Flange:
- 1-3/4"
- Max Hull Thickness:
- 2-1/2"
$6.99 $4.97 -
GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/4" HTH-1250-S
Groco
$56.99Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/4" Features: NPS Thread With Hose Connection #316 Stainless Steel UL Listed 647B- Part Number:
- 34-HTH1250S
- Availability:
- In Stock - Ships same or next business day.
- Thread NPS:
- 1-1/4"
- Hose ID:
- 1-1/4"
- A:
- 2.8
- B:
- 0.3
- C:
- 2.6
- D:
- 1.1
- E:
- 1.3
$56.99 -
GROCO Stainless Steel Hose Barb Thru-Hull Fitting - 1-1/2" HTH-1500-S
Groco
$84.00 $52.361-1/2" Hose Barb Stainless Hose Thru Hull Features: NPS Thread With Hose Connection #316 Stainless Steel Sizes from 1/2" to 2" Barb UL Listed 647B- Part Number:
- 34-HTH1500S
- Availability:
- In Stock - Ships same or next business day.
- Thread NPS:
- 1-1/2"
- Hose ID:
- 1-1/2" NPS
- A:
- 2.8
- B:
- 0.3
- C:
- 2.9
- D:
- 1.1
- E:
- 1.3
$84.00 $52.36 -
Seachoice Thru-Hull Conn-White Plas-3/4 50-18051
Seachoice
$4.99 $3.44Seachoice Thru-Hull Conn-White Plas-3/4 50-18051 Per ABYC "Safety Standards for Small Craft"Molded plastic with broad flange • Not recommended for use below the waterline.- Part Number:
- 50-18051
- Availability:
- In Stock - Ships same or next business day.
- Hose:
- 3/4"
- Flange:
- 1-1/2"
- Max Hull Thickness:
- 1-1/4"
$4.99 $3.44 -
GROCO 1-1/4" NPS NPT Combo Stainless Steel Thru-Hull Fitting w/Nut TH-1250-WS
Groco
$53.251-1/4" NPS NPT Combo Stainless Steel Thru-Hull Fitting with Nut Features: NPSM / NPT combination thread #316 Stainless Steel Sizes from 1/2" to 3" UL Listed 647B BSPP and Stainless Steel models available- Part Number:
- 34-TH1250WS
- Availability:
- In Stock - Ships same or next business day.
- Thread NPS:
- 1-1/4"
- A:
- 2.9
- B:
- 0.3
- C:
- 2.62
$53.25 -
GROCO 1/2" NPS NPT Combo Bronze Thru-Hull Fitting w/Nut TH-500-W
Groco
$21.00 $12.601/2" NPS NPT Combo Bronze Thru-Hull Fitting with Nut Features: NPSM / NPT combination thread C83600 Bronze Sizes from 1/2" to 5" UL Listed 647B Available with (-W) or without nut (-L) BSPP and Stainless Steel models available- Part Number:
- 34-TH500W
- Availability:
- In Stock - Ships same or next business day.
- Thread NPS:
- 1/2"
- A:
- 2.2
- B:
- 0.3
- C:
- 1.7
$21.00 $12.60