Thru-Hull Fittings
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Seachoice Thru-Hull Conn-White Plas-1 Nut 50-18141
Seachoice
$12.49 $9.08Seachoice Thru-Hull Conn-White Plas-1 Nut 50-18141 One nut applicationDesigned for use with one back nut, unlike old style 90°, thru-hull with both front and back nutMade of hi-impact white plastic- Part Number:
- 50-18141
- Availability:
- In Stock - Ships same or next business day.
- Hose:
- 1-1/8"
- Flange:
- 1-7/8"
- Max Hull Thickness:
- 1-1/8"
$12.49 $9.08 -
Attwood Marine Thru Hull SS 3/4" Short 66541-3
Attwood Marine
$45.08 $23.99Attwood Marine Thru Hull SS 3/4" Short 66541-3 Cast 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...- Part Number:
- 23-665413
- Availability:
- In Stock - Ships same or next business day.
- Hose:
- 3/4"
- Flange:
- 1-7/8"
- Max Hull Thickness:
- 5/8"
$45.08 $23.99 -
Groco 3 Inthru-Hull With Nut Th-3000-W
Groco
$365.00 $270.013" 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 Stai- Part Number:
- 34-TH3000W
- Availability:
- In Stock - Ships same or next business day.
- Thread:
- 3"
- A:
- 4
- B:
- 0.42
- C:
- 5.5
$365.00 $270.01 -
Attwood Marine Thru-Hull 3/4" 3873-3
Attwood Marine
$8.75 $6.02Attwood Marine Thru-Hull 3/4" 3873-3 Molded of rugged plastic. Will not rust, corrode, discolor or contribute to electrolysis. Design eliminates hull streaking and allows countersinking wherever a...- Part Number:
- 23-38733
- Availability:
- In Stock - Ships same or next business day.
- Hose:
- 3/4"
- Flange:
- 1-3/4"
- Max Hull Thickness:
- 1-1/4"
- Pkg.:
- Card
$8.75 $6.02 -
Sold Out, please call for ETA.
GROCO 1-1/2" Bronze High Speed Thru-Hull Fitting w/Nut HSTH-1500-W
Groco
$90.00 $59.291-1/2" 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...- Part Number:
- 34-HSTH1500W
- Availability:
- In Stock - Ships same or next business day.
- Thread NPS:
- 1-1/2"
- A:
- 3.15
- B:
- 0.3
- C:
- 2.89
$90.00 $59.29 -
Sold Out, please call for ETA.
GROCO 2" Bronze High Speed Thru-Hull Fitting w/Nut HSTH-2000-W
Groco
$102.00 $66.002" 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...- Part Number:
- 34-HSTH2000W
- Availability:
- In Stock - Ships same or next business day.
- Thread NPS:
- 2"
- A:
- 3.6
- B:
- 0.3
- C:
- 3.33
$102.00 $66.00 -
Perko 1-1/8 Thru Hull Connect Bulk 0328Dp6A
Perko
$9.99 $7.49Perko 1-1/8 Thru Hull Connect Bulk 0328Dp6A Molded white plastic with broad flange. For use with hose. Not recommended for use below waterline. UL Listed- Part Number:
- 9-0328DP6A
- Availability:
- In Stock - Ships same or next business day.
- Hose:
- 1-1/8"
- Flange:
- 2-1/4" OD
- Max Hull Thickness:
- 1-1/2"
$9.99 $7.49 -
Seachoice Marine Boat Thru Hull W/SS Cover-1 1/4 90 50-18571
Seachoice
$22.25 $17.98Seachoice Thru Hull W/SS Cover-1 1/4 90 50-18571 Molded from polypropylene with glass fiber for strengthNot recommended for use below the waterline.- Part Number:
- 50-18571
- Availability:
- In Stock - Ships same or next business day.
- Hose:
- 1-1/4"
- Flange:
- 2-3/8"
- Max Hull Thickness:
- 1-3/8"
$22.25 $17.98 -
Seachoice Thru Hull W/SS Cover-3/4 Strt 50-18441
Seachoice
$11.59 $10.19Seachoice Thru Hull W/SS Cover-3/4 Strt 50-18441 Molded from polypropylene with glass fiber for strengthNot recommended for use below the waterline.- Part Number:
- 50-18441
- Availability:
- In Stock - Ships same or next business day.
- Hose:
- 3/4"
- Flange:
- 1-7/8"
- Max Hull Thickness:
- 1-3/8"
$11.59 $10.19 -
Seachoice Thru Hull W/SS Cover-5/8 Strt 50-18431
Seachoice
$11.59 $10.19Seachoice Thru Hull W/SS Cover-5/8 Strt 50-18431 Molded from polypropylene with glass fiber for strengthNot recommended for use below the waterline.- Part Number:
- 50-18431
- Availability:
- In Stock - Ships same or next business day.
- Hose:
- 5/8"
- Flange:
- 1-7/8"
- Max Hull Thickness:
- 1-3/8"
$11.59 $10.19 -
Seachoice X-Long Thruhull 1-1/8 White Pla 18181
Seachoice
$11.37 $10.03Seachoice X-Long Thruhull 1-1/8 White Pla 18181 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...- Part Number:
- 50-18181
- Availability:
- In Stock - Ships same or next business day.
- Hose:
- 1-1/8"
- Flange:
- 1-7/8"
- Max Hull Thickness:
- 3-3/8"
$11.37 $10.03 -
Attwood Marine Thru Hull SS 1-1/2" Short 66545-3
Attwood Marine
$90.28 $53.46Attwood Marine Thru Hull SS 1-1/2" Short 66545-3 Cast 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...- Part Number:
- 23-665453
- Availability:
- In Stock - Ships same or next business day.
- Hose:
- 1-1/2"
- Flange:
- 3"
- Max Hull Thickness:
- 5/8"
$90.28 $53.46 -
Attwood Marine Thru-Hull Con. 90 Deg 3/4" Wh 38773
Attwood Marine
$17.12Attwood Marine Thru-Hull Con. 90 Deg 3/4" Wh 38773Molded of rugged plastic. Will not rust, corrode, discolor or contribute to electrolysis. Design eliminates hull streaking and allows countersinking...- Part Number:
- 23-38773
- Availability:
- In Stock - Ships same or next business day.
- Hose:
- 3/4"
- Flange:
- 1-1/2"
- Max Hull Thickness:
- 1"
- Pkg.:
- Card
$17.12 -
Perko 3/4 Bronze Thru Hull with Nut 0322Dp5Plb
Perko
$60.19 $37.05Perko 3/4 Bronze Thru Hull with Nut 0322Dp5PlbCast bronze. Flange is machined to fit hull and grooved to retain bedding compound. Neck is threaded to approximately 3/8" from flange. Includes flange...- Part Number:
- 9-0322DP5PLB
- Availability:
- In Stock - Ships same or next business day.
- Hose:
- 3/4"
- Flange:
- 1-7/8"
- Max Hull Thickness:
- 1-1/2"
$60.19 $37.05 -
Perko 3/4 Thru Hull Connection Bulk 0328Dp5
Perko
$8.06 $7.15Perko 3/4 Thru Hull Connection Bulk 0328Dp5Molded white plastic with broad flange. For use with hose. Not recommended for use below waterline. UL Listed- Part Number:
- 9-0328DP5
- Availability:
- In Stock - Ships same or next business day.
- Hose:
- 3/4"
- Flange:
- 1-7/8" OD
- Max Hull Thickness:
- 1-7/16"
$8.06 $7.15 -
Sea-Dog Line Thru Hull-1-1/8 520770
SEA-DOG LINE
$8.10 $8.08Sea-Dog Line Thru Hull-1-1/8 520770Injection molded polypropylene.- Part Number:
- 354-520770
- Availability:
- In Stock - Ships same or next business day.
- A:
- 2-3/16"
- B:
- 15/16"
- C:
- 1-3/4"
- D:
- 3-9/16"
- E:
- 1-3/8"
- F:
- 1-1/8" - 1-1/4"
$8.10 $8.08 -
Sea-Dog Line Thru-Hull Fitting 1 1/8" 520770-1
SEA-DOG LINE
$11.10 $10.60Sea-Dog Line Thru-Hull Fitting 1 1/8" 520770-1 Injection molded polypropylene.- Part Number:
- 354-5207701
- Availability:
- In Stock - Ships same or next business day.
- A:
- 2-3/16"
- B:
- 15/16"
- C:
- 1-3/4"
- D:
- 3-9/16"
- E:
- 1-3/8"
- F:
- 1-1/8" - 1-1/4"
$11.10 $10.60 -
Seachoice Thru Hull Conn-White Plas-5/8 50-18031
Seachoice
$6.99 $6.23Seachoice Thru Hull Conn-White Plas-5/8 50-18031 Per ABYC "Safety Standards for Small Craft"Molded plastic with broad flange • Not recommended for use below the waterline.- Part Number:
- 50-18031
- Availability:
- In Stock - Ships same or next business day.
- Hose:
- 5/8"
- Flange:
- 1-5/8"
- Max Hull Thickness:
- 1-1/4"
$6.99 $6.23 -
Seachoice Thru Hull W/SS Cover-1 Strat 50-18451
Seachoice
$12.30 $10.75Seachoice Thru Hull W/SS Cover-1 Strat 50-18451 Molded from polypropylene with glass fiber for strengthNot recommended for use below the waterline.- Part Number:
- 50-18451
- Availability:
- In Stock - Ships same or next business day.
- Hose:
- 1"
- Flange:
- 1-7/8"
- Max Hull Thickness:
- 1-3/8"
$12.30 $10.75 -
Seachoice Thru Hull W/SS Cover-2 Strat 50-18491
Seachoice
$22.95 $18.03Seachoice Thru Hull W/SS Cover-2 Strat 50-18491 Molded from polypropylene with glass fiber for strengthNot recommended for use below the waterline.- Part Number:
- 50-18491
- Availability:
- In Stock - Ships same or next business day.
- Hose:
- 2"
- Flange:
- 3-1/4"
- Max Hull Thickness:
- 1-5/8"
$22.95 $18.03