Best Boat Plumbing Fittings (April 2024) - Rated by CherryPicks' Experts

At a Glance: Our Top Picks

Top 1

Seachoice 90-Degree Thru-Hull Connector, Fits 1-1/8 in. ID Hose, 1-3/8 in. Ma...

9.8
CPR Score
Top 2

SEAFLO Thru Hull Fitting Through Hull (1.25" 1-1/4", 01-Pack)

9.7
CPR Score
Top 3

ISURE MARINE Stainless Steel Barbed Standard Length Straight Thru-Hull Marine...

9.6
CPR Score
Tips


Our team has analyzed 671 products of different Sports brands, including attwood, SEACHOICE, Extreme Max, SEAFLO, Keenso, Five Oceans, T. H. Marine, MUXSAM, Ologymart, ISURE MARINE, keehui, EEYAD, NRC&XRC, White Water, Groco, Harvard Marine, Aincix And BBH. The following list of top 30 Boat Plumbing Fittings is prepared for the customers by analyzing and comparing different 671 Boat Plumbing Fittings reviews.

* Cherrypicksreviews.com is reader-supported, Our editor review, and recommend the best products based on extensive data analysis, if you click on the product links, we may earn a commission through qualifying products purchased.

The Best Boat Plumbing Fittings Rated by CherryPicks

Market Overview
Boat Plumbing Fittings Reviewed
  • Reviews Analyzed: 4,539 Items
  • CPR Avg. Rating: 8.4 / 10
30 Products Evaluated
  • Highest Price: $41.99
  • Lowest Price: $7.19
  • Avg. Price: $15.08
Price Disclaimer

Top 30 Boat Plumbing Fittings on Amazon (Verified You can Buy)

Top 1

Seachoice 90-Degree Thru-Hull Connector, Fits 1-1/8 in. ID Hose, 1-3/8 in. Max Hull,White

SEACHOICE
18561
5.7 x 4.0 x 2.25 Inches
0.2006 Pounds

Ratings for SEACHOICE (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
HARVARD MARINE 3,400

Features

Made of polypropylene and glass fiber for strength
Stainless-steel flange offers excellent corrosion resistance
Show More
Top 2

SEAFLO Thru Hull Fitting Through Hull (1.25" 1-1/4", 01-Pack)

SEAFLO
4.0 x 1.0 x 1.0 Inches
0.15 Pounds

Ratings for SEAFLO (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
MarineNow -

Features

H - 97mm, D - 67.5mm
D1 = 33mm, d - 41mm
Show More
Top 3

ISURE MARINE Stainless Steel Barbed Standard Length Straight Thru-Hull Marine Barbed Hose Thru Drain Connector 1" w/Nut Boat Plumbing Fittings for Boats, Yachts, Marine

ISURE MARINE

Ratings for ISURE MARINE (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
hightecmarine -

Features

✔Standard Thread has full length thread for thick hulls and easy tightening;Inner Dia. 1''
✔Material: High quality and purity 316 Stainless Steel, Surface: Mirror polished/High polish finish.
Show More
Top 4

attwood unisex adult Through-Hulls boating plumbing fittings, White, One Size US

attwood
3873-3
7.748 x 7.748 x 4.25 Inches
0.08 Kilograms

Ratings for attwood (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

Ensures a reliable thru-hull connection
Fits ¾ inch inside diameter hose
Show More
Top 5

Five Oceans FO2996 Black Straight Thru-Hull Connection for Hose, 1 inch

Five Oceans
43237-2
4.0 x 2.0 x 2.0 Inches
0.18 Pounds

Ratings for Five Oceans (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
FIVE OCEANS / BARON USA LLC 9,805

Features

This Five Oceans Thru-Hull Fitting Connection for Hose is ideal for scupper, sink drain, and bilge pump overboard discharge. Excellent resistance to UV and weather-aging
It is made of tough injection molded Polypropylene plastic with AISI316 Stainless Steel Head that will resist sunlight, salt water, oil, gasoline and most common marine chemicals
Show More
Top 6

Groco 3/4" Bronze High Speed Thru-Hull Fitting w/Nut [HSTH-750-W]

Groco
75376
5.0 x 5.0 x 9.49 Inches
0.45 Pounds

Ratings for Groco (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Less Is Always More ✱AUTHORIZED SELLER✱ -

Features

New
Top 7

Seachoice 90-Degree Angled Thru-Hull Connector, White Finish, 0.75 in.

SEACHOICE
18131
3.752 x 2.0 x 6.75 Inches
0.11 Kilograms

Ratings for SEACHOICE (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

Ensures a reliable thru-hull connection
Fits ¾ inch inside diameter hose
Show More
Top 8

Five Oceans FO1867 White Straight Thru-Hull Fitting Connection for Hose, 1-1/2 inches, Injection Molded Polypropylene, Barbed, Resist Harsh Conditions

Five Oceans
1867

Ratings for Five Oceans (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
FIVE OCEANS / BARON USA LLC 9,805

Features

This Five Oceans Thru-Hull Fitting Connection for Hose is ideal for scupper, sink drain, and bilge pump overboard discharge. Hose Diameter: 1-1/2 inches (38mm)
It is made of tough injection molded Polypropylene plastic that will resist sunlight, salt water, oil, gasoline and most common marine chemicals
Show More
Top 9

ISURE MARINE 316 Stainless Steel Durable Combo Thru-Hull 1-1/4 Inch Boat Plumbing Fittings for Boats, Yachts

ISURE MARINE

Ratings for ISURE MARINE (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
boat marine -

Features

Material: Marine Grade 316 Stainless Steel Solid metal slab, very strong, durable
Fits 1 1/4" ID hose
Show More
Top 10

Boat Marine 1-1/8" 90 Degree Black Thru Hull Fitting

Harvard Marine

Ratings for Harvard Marine (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
HARVARD MARINE 3,400

Features

BOAT MARINE 1-1/8" 90 DEGREE THRU HULL BLACK
1-3/4" FLANGE 3-1/2" OVERALL LENGTH 1-1/2 SHAFT DIAMETER FOR 1-1/8" HOSE
Show More
Top 11

Keenso 1" Boat Plumbing Fittings,316 Stainless Steel Durable Barbed Thru Hull Threaded Fitting for Boats, Yachts, Marine

Keenso
Keensonh2mg4v8pf-01
0.0 x 0.0 x 0.0 Inches

Ratings for Keenso (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
sunfany -

Features

HIGH-QUALITY MATERIAL: This boat threaded fitting is made of heavy-duty 316 stainless steel material, which is sturdy and durable. It is not easily damaged and corroded, which has qualified quality and high strength.
EXQUISITE WORKMANSHIP: It adopts exquisite processing technology, surface with mirror polishing finish, which has strong corrosion resistance in salt water environment and can be used for a long time.
Show More
Top 12

Seachoice 3-Way Y Fitting, Fits 3/4 in. ID Hose, Black Plastic

SEACHOICE
18231
3.752 x 0.752 x 6.75 Inches
0.01 Pounds

Ratings for SEACHOICE (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

Perfect for plumbing hard-to-reach areas
Barbed connectors for a secure hold
Show More
Top 13

keehui 316 Stainless SteelCombo Stainless Steel 1" ID Thru-Hull Fitting w/Nut with Gasket for Boats, Yachts, Marine

keehui
CPCSK1"BAN

Ratings for keehui (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
LB PARTS -

Features

Material: This boat threaded fitting is made of heavy-duty 316 stainless steel material, which is sturdy and durable.
Customized gasket is Easy to install
Show More
Top 14

Attwood 3877-3 Polypropylene 90-Degree Thru-Hull Connector, White Finish

attwood
3877-3
4.5 x 9.252 x 3.25 Inches
0.08 Pounds

Ratings for attwood (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

Ensures a reliable thru-hull connection
Fits ¾ inch inside diameter hose
Show More
Top 15

SEAFLO Thru Hull Fittings (1-1/2")

SEAFLO
2.95 x 2.95 x 4.02 Inches

Ratings for SEAFLO (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
GK Wholesale 9,373

Features

4-Year Warranty!!
Color: White
Show More
Top 16

EEYAD 316 Stainless Steel Boat Thru-Hull Fitting Drain for 3/4" I.D. Hose

EEYAD
2.52 x 1.5 x 1.5 Inches
0.29 Pounds

Ratings for EEYAD (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
EEYAD -

Features

Stainless steel thru-hull with straight barb for hose
A good choice for scuppers, sink drains and bilge overboard drains
Show More
Top 17

attwood 66547-3 Stainless Steel Straight Thru-Hull Valve Fitting, Barbed, Standard Length, for 3/4-Inch Interior Diameter Hose

attwood
66547-3
9.75 x 10.12 x 4.5 Inches
3.4 Pounds

Ratings for attwood (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

Standard Thread has full length thread for thick hulls and easy tightening
Hose Size: 3/4" I.D.
Show More
Top 18

attwood Corporation 3899-3 Straight Threaded Barb Fitting Connector

attwood
3000.6428
4.5 x 9.252 x 3.5 Inches
0.05 Pounds

Ratings for attwood (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

New
Top 19

NRC&XRC Stainless Steel Barbed Short Straight Thru-Hull with Custom Gasket for 1/2" I.D. (1/2")

NRC&XRC
WJBP1/2INHULL

Ratings for NRC&XRC (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
liangbin technology -

Features

Material: Marine Grade 316 Stainless Steel Solid metal slab, Heavy Duty ,very strong, durable
Customized gasket is more convenient to install
Show More
Top 20

Attwood 3874-3 Polypropylene Durable Thru-Hull Connector Fitting, White Finish

attwood
3874-3
0.0 x 0.0 x 0.0 Inches
0.2 Pounds

Ratings for attwood (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

Ensures a reliable thru-hull connection
Fits 1-1/8 inch to 1-1/4 inch inside diameter hose
Show More
Top 21

Extreme Max 3004.9240 24V Jumper Wire - 12", black

Extreme Max
3004.9240
7.0 x 6.0 x 1.75 Inches

Ratings for Extreme Max (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
TBR WHOLESALE INC -

Features

24-volt jumper cable specifically designed for Extreme Max Boat Lift Boss units
Connects 12/24V Boat Lift Boss to two deep cycle marine batteries for 24 volt power
Show More
Top 22

T. H. Marine 3/4 Inch Straight Thru-Hull Fittings Boat Fittings - Extended 4.5" (Black)

T. H. Marine
TH-750XL-DP
1.75 x 1.75 x 7.5 Inches
0.125 Pounds

Ratings for T. H. Marine (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
PWC Parts -
Power UP Marine -

Features

Made of the highest quality virgin material to ensure consistent size and extra durability
All materials are UV stabilized to provide longevity
Show More
Top 23

Five Oceans FO4142 Marine In-Line Check Valves Stepped Connection 1 to 1-1/2 inches

Five Oceans

Ratings for Five Oceans (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
FIVE OCEANS / BARON USA LLC 9,805

Features

THIS IN-LINE check valve can be used to keep your pump primed, increase pump lift or prevent backflow
SUITABLE for use with manual or electric pumps. Must use hose clamps or PVC fittings
Show More
Top 24

BBH Marine Boat Plastic Thru Hull Fitting Drain Fits 1" Inch Hose

BBH

Ratings for BBH (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Haixing Yacht Equipment -

Features

Made of high quality plastic.
Excellent resistance to UV, oxidation and rain.
Show More
Top 25

MUXSAM 1 Piece Thru Hull Fitting Plastic White for 3/4 inch Hose

MUXSAM
SZ070030014780RK-1

Ratings for MUXSAM (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Digital2018 9,753
Digital2018 9,753

Features

This fitting should be used above the waterline.
Our Thru-Hulls are meant for installation through the transom and are good for overflow use in livewell installations or as an exhaust port for a bilge pump.
Show More
Top 26

attwood Corporation 3875-3 Straight Thru-Hull Connector

attwood
3875-3
6.5 x 17.248 x 7.75 Inches
0.2 Pounds

Ratings for attwood (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
Less Is Always More ✱AUTHORIZED SELLER✱ -

Features

Hose size: 1 1/2 inch I.D
Stem length: 3 1/2 inch
Show More
Top 27

White Water Stainless/Nylon Thru-Hull (6650N - 5/8”)

White Water

Ratings for White Water (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Marine Guys -

Features

Sold by Each
316 Stainless Steel Stamped Trim
Show More
Top 28

keehui 316 Stainless Steel Standard Length 1-1/2" I.D.Thru-Hull Fitting w/Nut &Gasket for Boats, Yachts, Marine

keehui
CPCSK1.5"BAN-XL

Ratings for keehui (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
LB PARTS -

Features

Material: This boat threaded fitting is made of heavy-duty 316 stainless steel material, which is sturdy and durable.
Customized gasket is more convenient to install
Show More
Top 29

Ologymart Boat Plumbing Fittings - Deck Floor Drain Grate-1 1/2" - Marine 316 Stainless Steel

Ologymart

Ratings for Ologymart (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
HonestBuy Official Ologymart Distributor -

Features

Cast 316 marine grade stainless steel.
Maximum corrosion resistance and durability in the saltwater environment.
Top 30

Thru Hull Fitting for Boat, 3/4 Inch 90 Degree Elbow Angled Thru-Hull Scupper Connector, White Finish, Fits 3/4 Inch ID Hose, Fits Hulls up to 1-1/4 inch Thick, Through Hull Fittings for Boats

Aincix
FS-TH-EW-0.75
3.28 x 2.8 x 1.99 Inches

Ratings for Aincix (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
quanzhoufashangkejiyouxiangongsi -

Top 10 Boat Plumbing Fittings - Verified to Buy (Apr. 2024)

Top 10 Boat Plumbing Fittings Brands on Amazon

Here is the list of top-rated brands that were evaluated by CherryPicks.

  • SEACHOICE
  • SEAFLO
  • ISURE MARINE
  • attwood
  • Five Oceans
  • Groco
  • Harvard Marine
  • Keenso
  • keehui
  • EEYAD

Top 10 Boat Plumbing Fittings Sellers: CPR Seller Rank List

CPR sellers rank is based on CherryPicks-AI bestselling ranking system that helps us analyze each seller's sales trends. The List of top seller ranks is our in-house data, essential for our product ranking to help you make the right shopping choice.

Rank Name Yearly Feedbacks Avg. Ratings
🥇 HARVARD MARINE 1,388 4.4
🥈 Less Is Always More ✱AUTHORIZED SELLER✱ 504 4.7
🥉 Digital2018 440 4.9
4 GK Wholesale 440 4.8
5 Amazon.com 385 4.7
6 MarineNow 370 4.8
7 PWC Parts 338 4.7
8 sunfany 330 4.7
9 FIVE OCEANS / BARON USA LLC 278 4.8
10 hightecmarine 255 4.6
View or download top Boat Plumbing Fittings seller & rating report
HARVARD MARINE [1388] Less Is Always More ✱AUTHORIZED SELLER✱ [504] Digital2018 [440] GK Wholesale [440] Amazon.com [385] MarineNow [370] PWC Parts [338] sunfany [330] FIVE OCEANS / BARON USA LLC [278] hightecmarine [255] HARVARD MARINE 29% Less Is Always More ✱AUTHORIZED SELLER✱ 11% Digital2018 9% GK Wholesale 9% Amazon.com 8% MarineNow 8% PWC Parts 7% sunfany 7% FIVE OCEANS / BARON USA LLC 6% hightecmarine 5%

[Get] Boat Plumbing Fittings Deals (✅Exclusively for Prime)

What does "Amazon Fulfilled" Mean?

Amazon Fulfilled refers to products handled by Amazon's logistics, which indicates that the product is stored, packed, and shipped by Amazon from one of its fulfillment centers.

When you order a product that is "Amazon Fulfilled," Amazon takes care of the storage, packing, shipping, and customer service for that product. This often ensures quicker delivery and better customer service compared to products that are not fulfilled by Amazon. It also means that the product is eligible for Amazon's return policy.

What does "Prime" Mean?

"Prime" refers to Amazon Prime Member (Join Amazon Prime Now), which indicates eligibility for Prime benefits. When you see "Prime" next to a product on Amazon, This generally means that if you are  an Amazon Prime member, you can get free two-day shipping on that product, and sometimes even same-day or one-day shipping depending on your location.

Prime members also have access to other benefits, including 2-Day ShippingExclusive Member DealsPrime VideoBuy With PrimeAmazon MusicPrime Gaming, and more.

Shop Prime Boat Plumbing Fittings Deals

What does "Free Shipping" Mean?

"Free Shipping" means that you will not be charged additional fees for the shipping of that product. However, unlike "Prime," which usually guarantees fast two-day shipping, "Free Shipping" doesn't necessarily mean fast shipping.

Sometimes there might be a minimum purchase requirement to qualify for free shipping if you are not a Prime member. For Prime members, the "Free Shipping" usually refers to the free two-day shipping that is one of the benefits of the Prime membership.


Why Should You Trust Us?

Now hundreds and thousands of Sports supplies are available on Amazon, Picking the right one is not easy, and that may take a lot of your time, Right? and What is the best Boat Plumbing Fittings to buy for new April 2024?

CherryPicks’s Methodology for Evaluating Boat Plumbing Fittings

We developed the CherryRatings-AI system to identify and score reviews and the CherryPicks-AI ranking system that uses TensorFlow framework to generate the best list, It will help us evaluate Sports items that sell on Amazon. The score of items is based on over ten parameters such as analyzing customer review content, product reviewing rating statistics, brand reputation evaluation, comparing product price with features, etc, You can visit How We Rank to learn more in detail.

We collected and analyzed 671 of Boat Plumbing Fittings reviews based on our selection criteria. It helped us shortlist the top qualified and rated Boat Plumbing Fittings for Sports, We found that most customers choose Boat Plumbing Fittings with an average price of $15.08, and the top brands are attwood, SEACHOICE, Extreme Max, SEAFLO, Keenso, Five Oceans, T. H. Marine, MUXSAM, Ologymart, ISURE MARINE, keehui, EEYAD, NRC&XRC, White Water, Groco, Harvard Marine, Aincix And BBH. 

Then our expert-level editors reviewed all those quality items and selected the top 30 Boat Plumbing Fittings for you, We have researched hundreds of sellers and picked the top sellers for Sports, including HARVARD MARINE, Less Is Always More ✱AUTHORIZED SELLER✱, GK Wholesale, Digital2018, Amazon.com, MarineNow, PWC Parts, sunfany, FIVE OCEANS / BARON USA LLC, hightecmarine, liangbin technology And TBR WHOLESALE INC. The Seachoice 90-Degree Thru-Hull Connector, Fits 1... are available for purchase right now, and The seller of #1 rank product has received honest feedback from 138 consumers with an average rating of 4.5.

We've helped a lot of satisfied users get the right Sports & Outdoors product based on their needs, and save lots of time for them to pick Boat Plumbing Fittings to buy.


Written By Harold J. Yates

Harold J. Yates loves to read books across genres. He would be providing us with book reviews and tips to make us buy the best books. When Harold is not reading or writing, he is playing tennis with his friends or meditating alone in the garden.