Boat Adapters

Boat Plumbing Adapters
  • Midland Metal® - 3/8" Hose I.D. to 3/4" MIP(M) Nylon White Hose/Pipe Adapter
    Midland Metal®3/8" Hose I.D. to 3/4" MIP(M) Nylon White Hose/Pipe Adapter (A3438)
    0
    # mpn4644463745
    3/8" Hose I.D. to 3/4" MIP(M) Nylon White Hose/Pipe Adapter by Midland Metal®. 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...
    Expertly crafted from premium materialsHigh quality at a budget-friendly price
    $5.82
  • Midland Metal® - 3/8" Hose I.D. to 3/8" MIP(M) Nylon Black Hose/Pipe Adapter
    Midland Metal®3/8" Hose I.D. to 3/8" MIP(M) Nylon Black Hose/Pipe Adapter (33-013B)
    0
    # mpn4699768672
    3/8" Hose I.D. to 3/8" MIP(M) Nylon Black Hose/Pipe Adapter (33-013B) by Midland Metal®. 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...
    Expertly crafted from premium materialsHigh quality at a budget-friendly price
    $4.47
  • Midland Metal® - 3/8" Hose I.D. to 3/8" MIP(M) Nylon White Hose/Pipe Adapter
    Midland Metal®3/8" Hose I.D. to 3/8" MIP(M) Nylon White Hose/Pipe Adapter (A38)
    0
    # mpn4644464376
    3/8" Hose I.D. to 3/8" MIP(M) Nylon White Hose/Pipe Adapter (A38) by Midland Metal®. 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....
    Expertly crafted from premium materialsHigh quality at a budget-friendly price
    $5.70
  • Midland Metal® - 3/8" Hose I.D. to 3/8" NPT(F) Brass Hose/Pipe Adapter
    Midland Metal®3/8" Hose I.D. to 3/8" NPT(F) Brass Hose/Pipe Adapter (32-059)
    0
    # mpn4644464177
    3/8" Hose I.D. to 3/8" NPT(F) Brass Hose/Pipe Adapter by Midland Metal®. 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
    $7.70
  • Midland Metal® - 3/8" Hose I.D. to 3/8" NPT(M) Brass Hose/Pipe Adapter
    Midland Metal®3/8" Hose I.D. to 3/8" NPT(M) Brass Hose/Pipe Adapter (32-013)
    0
    # mpn4644464167
    3/8" Hose I.D. to 3/8" NPT(M) Brass Hose/Pipe Adapter by Midland Metal®. 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
    $7.08
  • Midland Metal® - 3/8" MIP(M) to 1/4" MIP(F) Nylon White Pipe/Pipe Hex Bushing
    Midland Metal®3/8" MIP(M) to 1/4" MIP(F) Nylon White Pipe/Pipe Hex Bushing (RB3814)
    0
    # mpn4644463759
    3/8" MIP(M) to 1/4" MIP(F) Nylon White Pipe/Pipe Hex Bushing by Midland Metal®. 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...
    Expertly crafted from premium materialsHigh quality at a budget-friendly price
    $7.57
  • Midland Metal® - 3/8" Male Flare to 1/2" FIP Female Brass Pipe/Pipe Adapter
    Midland Metal®3/8" Male Flare to 1/2" FIP Female Brass Pipe/Pipe Adapter (10-237)
    0
    # mpn4952495587
    3/8" Male Flare to 1/2" FIP Female Brass Pipe/Pipe Adapter by Midland Metal®. 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...
    Carefully crafted to suit your specific boating needsEngineered to high standards
    $20.04
  • Midland Metal® - 5/16" Hose I.D. to 1/4" NPT(F) Brass Hose/Pipe Adapter
    Midland Metal®5/16" Hose I.D. to 1/4" NPT(F) Brass Hose/Pipe Adapter (32-056)
    0
    # mpn4644464175
    5/16" Hose I.D. to 1/4" NPT(F) Brass Hose/Pipe Adapter by Midland Metal®. 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
    $8.09
  • Midland Metal® - 5/16" Hose I.D. to 1/4" NPT(M) Brass Hose/Pipe Adapter
    Midland Metal®5/16" Hose I.D. to 1/4" NPT(M) Brass Hose/Pipe Adapter (32-009)
    0
    # mpn4644464163
    5/16" Hose I.D. to 1/4" NPT(M) Brass Hose/Pipe Adapter by Midland Metal®. 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
    $6.34
  • Midland Metal® - 5/16" Hose I.D. to 3/8" MIP(M) Nylon White Hose/Pipe Adapter
    Midland Metal®5/16" Hose I.D. to 3/8" MIP(M) Nylon White Hose/Pipe Adapter (A38516)
    0
    # mpn4644464379
    5/16" Hose I.D. to 3/8" MIP(M) Nylon White Hose/Pipe Adapter by Midland Metal®. 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...
    Expertly crafted from premium materialsHigh quality at a budget-friendly price
    $5.14
  • Midland Metal® - 5/16" Hose I.D. to 3/8" NPT(M) Brass Hose/Pipe Adapter
    Midland Metal®5/16" Hose I.D. to 3/8" NPT(M) Brass Hose/Pipe Adapter (32-010)
    0
    # mpn4644464164
    5/16" Hose I.D. to 3/8" NPT(M) Brass Hose/Pipe Adapter by Midland Metal®. 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
    $7.38
  • Midland Metal® - 5/8" Hose I.D. to 1/2" Hose I.D. Nylon White Hose/Hose Adapter
    Midland Metal®5/8" Hose I.D. to 1/2" Hose I.D. Nylon White Hose/Hose Adapter (SHM1258)
    0
    # mpn4644464453
    5/8" Hose I.D. to 1/2" Hose I.D. Nylon White Hose/Hose Adapter by Midland Metal®. 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...
    Expertly crafted from premium materialsHigh quality at a budget-friendly price
    $6.00
  • Midland Metal® - 5/8" Hose I.D. to 1/2" NPT(M) Brass Hose/Pipe Adapter
    Midland Metal®5/8" Hose I.D. to 1/2" NPT(M) Brass Hose/Pipe Adapter (32-020)
    0
    # mpn4644464169
    5/8" Hose I.D. to 1/2" NPT(M) Brass Hose/Pipe Adapter by Midland Metal®. 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
    $9.39
  • Midland Metal® - 5/8" Hose I.D. to 3/8" MIP(M) Nylon White Hose/Pipe Adapter
    Midland Metal®5/8" Hose I.D. to 3/8" MIP(M) Nylon White Hose/Pipe Adapter (A3858)
    0
    # mpn4644464380
    5/8" Hose I.D. to 3/8" MIP(M) Nylon White Hose/Pipe Adapter by Midland Metal®. 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...
    Expertly crafted from premium materialsHigh quality at a budget-friendly price
    $5.70
  • Whale® - 1/2" BSP (F) to 15 mm Quick Connect Brass Adapter
    Whale®1/2" BSP (F) to 15 mm Quick Connect Brass Adapter (WX1533B)
    0
    # mpn4696751812
    1/2" BSP (F) to 15 mm Quick Connect Brass Adapter by Whale®. The Quick Connect system can be used by anyone to install additional outlets or to replumb your boat or recreational vehicle. Whale Quick Connect fittings offer many benefits,...
    Unique Double Gripper' design provides secure lifelong pipework retention even at excessive pressuresThe innovative cage collet' eliminates leaks where fittings are installed close to tight bends
    $28.55
  • Whale® - 1/2" BSP(F) to 15 mm Quick Connect Brass Adapter
    Whale®1/2" BSP(F) to 15 mm Quick Connect Brass Adapter (WX1536B)
    0
    # mpn4696751834
    1/2" BSP(F) to 15 mm Quick Connect Brass Adapter by Whale®. The Quick Connect system can be used by anyone to install additional outlets or to replumb your boat or recreational vehicle. Whale Quick Connect fittings offer many benefits,...
    Unique Double Gripper' design provides secure lifelong pipework retention even at excessive pressuresThe innovative cage collet' eliminates leaks where fittings are installed close to tight bends
    $11.04
  • Whale® - 1/2" Stem to 15 mm Quick Connect Brass Tube to Hose Connector
    Whale®1/2" Stem to 15 mm Quick Connect Brass Tube to Hose Connector (WX1544B)
    0
    # mpn4696751826
    1/2" Stem to 15 mm Quick Connect Brass Tube to Hose Connector by Whale®. The Quick Connect system can be used by anyone to install additional outlets or to replumb your boat or recreational vehicle. Whale Quick Connect fittings offer...
    Unique Double Gripper' design provides secure lifelong pipework retention even at excessive pressuresThe innovative cage collet' eliminates leaks where fittings are installed close to tight bends
    $29.14
  • Whale® - 1/4" NPT(F) to 15 mm Stem Brass Adapter
    Whale®1/4" NPT(F) to 15 mm Stem Brass Adapter (WX1537B)
    0
    # mpn4696751835
    1/4" NPT(F) to 15 mm Stem Brass Adapter by Whale®. The Quick Connect system can be used by anyone to install additional outlets or to replumb your boat or recreational vehicle. Whale Quick Connect fittings offer many benefits, all...
    Unique Double Gripper' design provides secure lifelong pipework retention even at excessive pressuresThe innovative cage collet' eliminates leaks where fittings are installed close to tight bends
    $21.33
  • Whale® - 3/8" BSP (F) to 15 mm Quick Connect Brass Adapter
    Whale®3/8" BSP (F) to 15 mm Quick Connect Brass Adapter (WX1538B)
    0
    # mpn4696751825
    3/8" BSP (F) to 15 mm Quick Connect Brass Adapter by Whale®. The Quick Connect system can be used by anyone to install additional outlets or to replumb your boat or recreational vehicle. Whale Quick Connect fittings offer many benefits,...
    Unique Double Gripper' design provides secure lifelong pipework retention even at excessive pressuresThe innovative cage collet' eliminates leaks where fittings are installed close to tight bends
    $27.74
  • Flojet® - 1/2"-14 Male to Snap-In Port Plastic Black Adapter with EPDM O-Ring
    Flojet®1/2"-14 Male to Snap-In Port Plastic Black Adapter with EPDM O-Ring (20381000)
    0
    # mpn2431713
    1/2"-14 Male to Snap-In Port Plastic Black Adapter with EPDM O-Ring by Flojet®. 2 Pieces Quad. 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...
    Expertly crafted from premium materialsHigh quality at a budget-friendly price
    $7.29
  • Flojet® - 5/8" Hose I.D. to Snap-In Port Plastic Black Adapter
    Flojet®5/8" Hose I.D. to Snap-In Port Plastic Black Adapter (20381003)
    0
    # mpn4699768606
    5/8" Hose I.D. to Snap-In Port Plastic Black Adapter by Flojet®. Quad Port x 5/8 Hose Barb, Straight. 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
    $4.48
  • Flojet® - Plastic Black Quad Ports, 2 Pieces
    Flojet®Plastic Black Quad Ports, 2 Pieces (20381007)
    0
    # mpn4666208774
    Plastic Black Quad Ports, 2 Pieces by Flojet®. Pair. Snap-in port x Garden Hose, O-Ring EPDM. 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...
    Expertly crafted from premium materialsHigh quality at a budget-friendly price
    $3.38
  • Flow-Rite® - 3/4" Hose I.D. to 3/4" NPT(F) Plastic White Hose/Pipe Adapter
    Flow-Rite®3/4" Hose I.D. to 3/4" NPT(F) Plastic White Hose/Pipe Adapter (MPA-037)
    0
    # mpn1589901111
    3/4" Hose I.D. to 3/4" NPT(F) Plastic White Hose/Pipe Adapter 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...
    Expertly crafted from premium materialsHigh quality at a budget-friendly price
    $5.30
  • Flow-Rite® - 3/4" Hose I.D. to 3/4" NPT(M) Plastic Black Hose/Pipe Adapter
    Flow-Rite®3/4" Hose I.D. to 3/4" NPT(M) Plastic Black Hose/Pipe Adapter (MA-029)
    0
    # mpn1589901070
    3/4" Hose I.D. to 3/4" NPT(M) Plastic Black Hose/Pipe Adapter (MA-029) 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....
    Expertly crafted from premium materialsHigh quality at a budget-friendly price
    $3.91
  • Flow-Rite® - 3/4" Hose I.D. to 3/4" NPT(M) Plastic White Hose/Pipe Adapter
    Flow-Rite®3/4" Hose I.D. to 3/4" NPT(M) Plastic White Hose/Pipe Adapter (MPA-021)
    0
    # mpn1589901099
    3/4" Hose I.D. to 3/4" NPT(M) Plastic White Hose/Pipe Adapter (MPA-021) 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....
    Expertly crafted from premium materialsHigh quality at a budget-friendly price
    $5.30
  • Jabsco® - 1/2"-14 Thread to Snap-In Port Adapter with Rubber O-Ring, 2 Pieces
    Jabsco®1/2"-14 Thread to Snap-In Port Adapter with Rubber O-Ring, 2 Pieces (30649-1004)
    0
    # mpn4694057287
    1/2"-14 Thread to Snap-In Port Adapter with Rubber O-Ring, 2 Pieces by Jabsco®. Rubber. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level...
    Expertly crafted from premium materialsHigh quality at a budget-friendly price
    $5.04
  • Jabsco® - 3/4" GHT to 3/4" Quick Connect Plastic Blue Flush Mount Hose Adapter
    Jabsco®3/4" GHT to 3/4" Quick Connect Plastic Blue Flush Mount Hose Adapter (31911-0002)
    0
    # mpn1996315
    3/4" GHT to 3/4" Quick Connect Plastic Blue Flush Mount Hose Adapter by Jabsco®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of...
    Expertly crafted from premium materialsHigh quality at a budget-friendly price
    $35.10
  • Jabsco® - Plastic Black Draw Tube Reducer
    Jabsco®Plastic Black Draw Tube Reducer (33857-0000)
    0
    # mpn4647804878
    Plastic Black Draw Tube Reducer by Jabsco®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...
    Expertly crafted from premium materialsHigh quality at a budget-friendly price
    $4.39
  • Seachoice® - 5/8" I.D. to 3/4" I.D. Female Nylon Black Hose Mender
    Seachoice®5/8" I.D. to 3/4" I.D. Female Nylon Black Hose Mender (79641)
    0
    # mpn4522171354
    5/8" I.D. to 3/4" I.D. Female Nylon Black Hose Mender by Seachoice®. Fits rubber or plastic hoses 5/8" to 3/4". This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology...
    Expertly crafted from premium materialsHigh quality at a budget-friendly price
    $24.68
  • Seachoice® - 5/8" I.D. to 3/4" I.D. Female Nylon Black Hose/Hose Coupling
    Seachoice®5/8" I.D. to 3/4" I.D. Female Nylon Black Hose/Hose Coupling (79651)
    0
    # mpn4522169619
    5/8" I.D. to 3/4" I.D. Female Nylon Black Hose/Hose Coupling by Seachoice®. Fits rubber or plastic hoses 5/8" to 3/4". 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
    $23.56




Depending on its type and application, a boat may contain different piping systems designed for bilge water removal, fresh and potable water supply, sanitary purposes, livewell, etc. All of these systems require regular inspection and maintenance, and in order to rebuild or restore them, you may need to replace some metal or plastic fittings and adapters. Such parts are typically installed in places where pipes pass through the hull or deck, change direction, or connect to various equipment, and all of them have to meet certain standards and marine regulations.

For instance, it's not recommended to use nylon thru-hulls and other plastic fittings at or below the waterline. In our online store, you can find a large assortment of elbows, couplings, tees, thru-hull fittings, in-line valves, and other products used for marine plumbing. Sourced from leading brands, they are available in numerous sizes and comply with the necessary regulations. However, before ordering any of them, make sure the thread of your line complies with our fittings. Most of them are made in accordance with national thread standards such as NPT, NPS, or their sub-types (MPT, FPT, etc.) Featuring a parallel or tapered thread, they are not compatible with British standards (such as BSPT or BSPP) that are more spread in Europe.

Featured Brands

Related Categories

CONTACTS
CUSTOMER SERVICE
INFORMATION
BOATiD FacebookBOATiD XBOATiD YouTube ChannelBOATiD PinterestBOATiD Instagram
All manufacturer names, symbols, and descriptions, used in our images and text are used solely for identification purposes only. It is neither inferred nor implied that any item sold by BOATiD.com is a product authorized by or in any way connected with any manufacturers displayed on this page.