Boat Thru-Hull Fittings
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T-H Marine®1" Hole Thru-Hull Fitting for 5/8" D Hose1" Hole Thru-Hull Fitting for 5/8" D Hose by T-H Marine®. #1 Plastic Thru-Hull Supplier in the U.S.A. Their molded Thru-Hull fittings are used by more OEM boat builders than any other brand. All T-H Marine Thru-Hull Fittings are made of...Expertly crafted from premium materialsHigh quality at a budget-friendly price$3.64 - $3.67 - T-H Marine®1-3/8" Hole 90° Elbow Short Thru-Hull Fitting for 1-1/8" D Hose1-3/8" Hole 90° Elbow Short Thru-Hull Fitting for 1-1/8" D Hose by T-H Marine®. #1 Plastic Thru-Hull Supplier in the U.S.A. Their molded Thru-Hull fittings are used by more OEM boat builders than any other brand. All T-H Marine...High quality at an affordable priceExpertly made from premium materials$2.97 - $10.52
- T-H Marine®1-3/8" Hole Straight Thru-Hull Fitting for 1" D Hose1-3/8" Hole Straight Thru-Hull Fitting for 1" D Hose by T-H Marine®. #1 Plastic Thru-Hull Supplier in the U.S.A. Their molded Thru-Hull fittings are used by more OEM boat builders than any other brand. All T-H Marine Thru-Hull Fittings...Expertly crafted from premium materialsHigh quality at a budget-friendly price$3.65 - $6.02
- Whitecap®1-5/16" Hole 90° Elbow Thru-Hull Fitting for 3/4" D Hose1-5/16" Hole 90° Elbow Thru-Hull Fitting for 3/4" D Hose by Whitecap®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet...Expertly crafted from premium materialsHigh quality at a budget-friendly price$4.29 - $13.04
- Flow-Rite®1-1/16" Hole Barbed Thru-Hull Fitting for 3/4" D Hose1-1/16" Hole Barbed Thru-Hull Fitting for 3/4" D Hose by Flow-Rite®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your...Expertly crafted from premium materialsHigh quality at a budget-friendly price$4.47
- Seachoice®1-1/2" Hole Thru-Hull Fitting for 3/4" D Hose1-1/2" Hole Thru-Hull Fitting for 3/4" D Hose by Seachoice®. Per ABYC "Safety Standards for Small Craft". This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with...Expertly crafted from premium materialsHigh quality at a budget-friendly price$39.78 - $60.18
- Seachoice®1-1/2" Hole Thru-Hull Fitting for 3/4" D Hose with Broad Flange1-1/2" Hole Thru-Hull Fitting for 3/4" D Hose with Broad Flange by Seachoice®. Per ABYC "Safety Standards for Small Craft". This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art...Expertly crafted from premium materialsHigh quality at a budget-friendly price$24.17 - $31.21
- Seachoice®1-5/8" Hole Thru-Hull Fitting for 5/8" D Hose with Broad Flange1-5/8" Hole Thru-Hull Fitting for 5/8" D Hose with Broad Flange by Seachoice®. Per ABYC "Safety Standards for Small Craft". This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art...Expertly crafted from premium materialsHigh quality at a budget-friendly price$22.24 - $29.78
- Seachoice®1-7/8" Hole Thru-Hull Fitting for 1-1/8" D Hose1-7/8" Hole Thru-Hull Fitting for 1-1/8" D Hose by Seachoice®. Per ABYC "Safety Standards for Small Craft". This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and...Expertly crafted from premium materialsHigh quality at a budget-friendly price$58.14 - $83.64
- Seachoice®1-7/8" Hole Thru-Hull Fitting for 1-1/8" D Hose with Broad Flange1-7/8" Hole Thru-Hull Fitting for 1-1/8" D Hose with Broad Flange by Seachoice®. Per ABYC "Safety Standards for Small Craft". This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art...Expertly crafted from premium materialsHigh quality at a budget-friendly price$48.14 - $52.43
- T-H Marine®1" Hole 90° Plastic Black Elbow Thru-Hull Fitting for 3/4" D Hose, Packaged (TH-7590-DP)1" Hole 90° Plastic Black Elbow Thru-Hull Fitting for 3/4" D Hose, Packaged (TH-7590-DP) by T-H Marine®. For those hard to reach applications that may or may not require low clearance. #1 Plastic Thru-Hull Supplier in the U.S.A. Their...№1 Plastic Thru-Hull Supplier in the U. S. AStandard 90 degree fittings feature a unique finished head and a pass-around nut for easier and more attractive installation, an innovation that T-H Marine developed$4.64
- T-H Marine®1" Hole 90° Plastic Chrome Plated Elbow Thru-Hull Fitting for 3/4" D Hose, Bulk (TH-7590CP-DP)1" Hole 90° Plastic Chrome Plated Elbow Thru-Hull Fitting for 3/4" D Hose, Bulk (TH-7590CP-DP) by T-H Marine®. For those hard to reach applications that may or may not require low clearance. #1 Plastic Thru-Hull Supplier in the U.S.A....№1 Plastic Thru-Hull Supplier in the U. S. AStandard 90 degree fittings feature a unique finished head and a pass-around nut for easier and more attractive installation, an innovation that T-H Marine developed$6.87
- T-H Marine®1" Hole 90° Plastic White Elbow Thru-Hull Fitting for 3/4" D Hose, Bulk (TH-7592-B)1" Hole 90° Plastic White Elbow Thru-Hull Fitting for 3/4" D Hose, Bulk (TH-7592-B) by T-H Marine®. For those hard to reach applications that may or may not require low clearance. #1 Plastic Thru-Hull Supplier in the U.S.A. Their...№1 Plastic Thru-Hull Supplier in the U. S. AStandard 90 degree fittings feature a unique finished head and a pass-around nut for easier and more attractive installation, an innovation that T-H Marine developed$2.99
- T-H Marine®1" Hole Plastic Black Thru-Hull Fitting for 3/4" D Hose (Bulk) (TH-750-B)1" Hole Plastic Black Thru-Hull Fitting for 3/4" D Hose (Bulk) (TH-750-B) by T-H Marine®. #1 Plastic Thru-Hull Supplier in the U.S.A. Their molded Thru-Hull fittings are used by more OEM boat builders than any other brand. All T-H...Expertly crafted from premium materialsHigh quality at a budget-friendly price$2.07
- T-H Marine®1" Hole Plastic Chrome Plated Thru-Hull Fitting for 3/4" D Hose (Packaged) (TH-750CP-DP)1" Hole Plastic Chrome Plated Thru-Hull Fitting for 3/4" D Hose (Packaged) (TH-750CP-DP) by T-H Marine®. #1 Plastic Thru-Hull Supplier in the U.S.A. Their molded Thru-Hull fittings are used by more OEM boat builders than any other...Expertly crafted from premium materialsHigh quality at a budget-friendly price$5.88
- T-H Marine®1" Hole Plastic White Thru-Hull Fitting for 3/4" D Hose (Bulk) (TH-752XL-B)1" Hole Plastic White Thru-Hull Fitting for 3/4" D Hose (Bulk) (TH-752XL-B) by T-H Marine®. #1 Plastic Thru-Hull Supplier in the U.S.A. Their molded Thru-Hull fittings are used by more OEM boat builders than any other brand. All T-H...Expertly crafted from premium materialsHigh quality at a budget-friendly price$3.02
- T-H Marine®1" Hole Plastic White Thru-Hull Fitting for 5/8" D Hose (TH-652-DP)1" Hole Plastic White Thru-Hull Fitting for 5/8" D Hose (TH-652-DP) by T-H Marine®. #1 Plastic Thru-Hull Supplier in the U.S.A. Their molded Thru-Hull fittings are used by more OEM boat builders than any other brand. All T-H Marine...Expertly crafted from premium materialsHigh quality at a budget-friendly price$3.64
- T-H Marine®1-3/8" Hole 90° Chrome Plated Elbow Thru-Hull Fitting for 1-1/8" D Hose, Packaged (TH-1290CP-DP)1-3/8" Hole 90° Chrome Plated Elbow Thru-Hull Fitting for 1-1/8" D Hose, Packaged (TH-1290CP-DP) by T-H Marine®. #1 Plastic Thru-Hull Supplier in the U.S.A. Their molded Thru-Hull fittings are used by more OEM boat builders than any...One NutExpertly crafted from premium materials$13.54
- T-H Marine®1-3/8" Hole 90° Plastic White Elbow Thru-Hull Fitting for 1-1/8" D Hose, Bulk (TH-1892-B)1-3/8" Hole 90° Plastic White Elbow Thru-Hull Fitting for 1-1/8" D Hose, Bulk (TH-1892-B) by T-H Marine®. #1 Plastic Thru-Hull Supplier in the U.S.A. Their molded Thru-Hull fittings are used by more OEM boat builders than any other...One NutExpertly crafted from premium materials$3.18
- T-H Marine®1-3/8" Hole Plastic Black Thru-Hull Fitting for 1-1/8" D Hose, Bulk (TH-1200-B)1-3/8" Hole Plastic Black Thru-Hull Fitting for 1-1/8" D Hose, Bulk (TH-1200-B) by T-H Marine®. #1 Plastic Thru-Hull Supplier in the U.S.A. Their molded Thru-Hull fittings are used by more OEM boat builders than any other brand. All T-H...№1 Plastic Thru-Hull Supplier in the U. S. AAll T-H Marine Thru-Hull Fittings are made of the highest quality virgin material to insure consistent size, extra durability and attractive appearance$3.52
- T-H Marine®1-3/8" Hole Plastic Black Thru-Hull Fitting for 1-1/8" D Hose, Packaged (TH-1200XL-DP)1-3/8" Hole Plastic Black Thru-Hull Fitting for 1-1/8" D Hose, Packaged (TH-1200XL-DP) by T-H Marine®. #1 Plastic Thru-Hull Supplier in the U.S.A. Their molded Thru-Hull fittings are used by more OEM boat builders than any other brand....№1 Plastic Thru-Hull Supplier in the U. S. AAll T-H Marine Thru-Hull Fittings are made of the highest quality virgin material to insure consistent size, extra durability and attractive appearance$7.06
- T-H Marine®1-3/8" Hole Plastic Chrome Plated Thru-Hull Fitting for 1-1/8" D Hose, Packaged (TH-1200XLCP-DP)1-3/8" Hole Plastic Chrome Plated Thru-Hull Fitting for 1-1/8" D Hose, Packaged (TH-1200XLCP-DP) by T-H Marine®. #1 Plastic Thru-Hull Supplier in the U.S.A. Their molded Thru-Hull fittings are used by more OEM boat builders than any...№1 Plastic Thru-Hull Supplier in the U. S. AAll T-H Marine Thru-Hull Fittings are made of the highest quality virgin material to insure consistent size, extra durability and attractive appearance$10.42
- T-H Marine®1-3/8" Hole Plastic Chrome Plated Thru-Hull Fitting for 1-1/8" D Hose, Packaged (TH-1200CP-DP)1-3/8" Hole Plastic Chrome Plated Thru-Hull Fitting for 1-1/8" D Hose, Packaged (TH-1200CP-DP) by T-H Marine®. #1 Plastic Thru-Hull Supplier in the U.S.A. Their molded Thru-Hull fittings are used by more OEM boat builders than any other...№1 Plastic Thru-Hull Supplier in the U. S. AAll T-H Marine Thru-Hull Fittings are made of the highest quality virgin material to insure consistent size, extra durability and attractive appearance$7.49
- T-H Marine®1-3/8" Hole Plastic White Thru-Hull Fitting for 1-1/8" D Hose, Bulk (TH-1202-B)1-3/8" Hole Plastic White Thru-Hull Fitting for 1-1/8" D Hose, Bulk (TH-1202-B) by T-H Marine®. #1 Plastic Thru-Hull Supplier in the U.S.A. Their molded Thru-Hull fittings are used by more OEM boat builders than any other brand. All T-H...№1 Plastic Thru-Hull Supplier in the U. S. AAll T-H Marine Thru-Hull Fittings are made of the highest quality virgin material to insure consistent size, extra durability and attractive appearance$3.71
- T-H Marine®1-3/8" Hole Plastic White Thru-Hull Fitting for 1-1/8" D Hose, Bulk (TH-1202XL-B)1-3/8" Hole Plastic White Thru-Hull Fitting for 1-1/8" D Hose, Bulk (TH-1202XL-B) by T-H Marine®. #1 Plastic Thru-Hull Supplier in the U.S.A. Their molded Thru-Hull fittings are used by more OEM boat builders than any other brand. All...№1 Plastic Thru-Hull Supplier in the U. S. AAll T-H Marine Thru-Hull Fittings are made of the highest quality virgin material to insure consistent size, extra durability and attractive appearance$4.23
- T-H Marine®2" Hole 90° Plastic White Elbow Thru-Hull Fitting for 1-1/2" D Hose, Bulk (TH-1592-B)2" Hole 90° Plastic White Elbow Thru-Hull Fitting for 1-1/2" D Hose, Bulk (TH-1592-B) by T-H Marine®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with...№1 Plastic Thru-Hull Supplier in the U. S. AAll T-H Marine Thru-Hull Fittings are made of the highest quality virgin material to insure consistent size, extra durability and attractive appearance$13.71
- T-H Marine®2" Hole Plastic Black Thru-Hull Fitting for 1-1/2" D Hose, Bulk (TH-1500-B)2" Hole Plastic Black Thru-Hull Fitting for 1-1/2" D Hose, Bulk (TH-1500-B) by T-H Marine®. #1 Plastic Thru-Hull Supplier in the U.S.A. Their molded Thru-Hull fittings are used by more OEM boat builders than any other brand. All T-H...Expertly crafted from premium materialsHigh quality at a budget-friendly price$5.20
- T-H Marine®2" Hole Plastic Chrome Plated Thru-Hull Fitting for 1-1/2" D Hose, Packaged (TH-1500XLCP-DP)2" Hole Plastic Chrome Plated Thru-Hull Fitting for 1-1/2" D Hose, Packaged (TH-1500XLCP-DP) by T-H Marine®. #1 Plastic Thru-Hull Supplier in the U.S.A. Their molded Thru-Hull fittings are used by more OEM boat builders than any other...Expertly crafted from premium materialsHigh quality at a budget-friendly price$20.75
- T-H Marine®2" Hole Plastic Chrome Plated Thru-Hull Fitting for 1-1/2" D Hose, Packaged (TH-1500CP-DP)2" Hole Plastic Chrome Plated Thru-Hull Fitting for 1-1/2" D Hose, Packaged (TH-1500CP-DP) by T-H Marine®. #1 Plastic Thru-Hull Supplier in the U.S.A. Their molded Thru-Hull fittings are used by more OEM boat builders than any other...Expertly crafted from premium materialsHigh quality at a budget-friendly price$12.32
- T-H Marine®2" Hole Plastic White Thru-Hull Fitting for 1-1/2" D Hose, Bulk (TH-1502-B)2" Hole Plastic White Thru-Hull Fitting for 1-1/2" D Hose, Bulk (TH-1502-B) by T-H Marine®. #1 Plastic Thru-Hull Supplier in the U.S.A. Their molded Thru-Hull fittings are used by more OEM boat builders than any other brand. All T-H...Expertly crafted from premium materialsHigh quality at a budget-friendly price$5.26
Most boats have different systems using special openings in the hull for their operation, both above and below the waterline. These include engine cooling, water ballast, plumbing, and some other systems, and each of them has to be installed properly and inspected regularly in order to avoid dangerous leaks. Particularly, thru-hull fittings and seacocks require careful attention, especially those installed under the water. It's not recommended to use nylon or even brass fittings in such places, while those made of bronze or some specific composite materials are approved by ABYC and meet strict requirements concerning tensile strength, corrosion resistance, etc.
As for boat thru-hull fittings installed above the waterline, the requirements are somewhat lower, but it doesn't mean they can be omitted. In each case, your fittings should be of high quality and have an appropriate design and diameter. A wide range of such products is offered on our virtual shelves. You can choose from straight and elbow fittings made from different materials and having threaded or barbed ends to connect a valve, pipe, or hose. Sourced from reputable brands such as Groco or T-H Marine, they offer high quality and perfect tightness.
