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John Guest 12mm 3/8" Straight Adapter Male Plastic

John Guest 12mm 3/8" Straight Adapter Male Plastic

SKU: 800-02038
$12.15 Regular price $13.50

Universal – suitable for caravans, 4WDs, RVs, marine and off-grid water systems


1 x John Guest 12mm x 3/8" Male Straight Adapter (800-02038)


Compact inline fitting suitable for tight install areas in caravans and 4WD systems

Genuine John Guest male straight adapter designed for reliable connection between push-fit tubing and threaded plumbing systems.

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John Guest 12mm 3/8" Straight Adapter Male Plastic

$12.15 Regular price $13.50
Description

A compact and reliable push-fit male straight adapter designed for clean transitions between 12mm tubing and 3/8" NPT threaded systems.

The John Guest Male Adapter (800-02038) is built for caravan, 4WD, RV, and off-grid plumbing setups where secure, leak-free connections are essential. It allows you to easily connect 12mm water line into threaded components such as pumps, filters, tanks, and manifolds.

Made from durable engineering-grade plastic, this fitting is lightweight, corrosion-resistant, and designed for long-term use in water systems. The push-fit design ensures fast installation with no tools required, making it ideal for both new builds and system upgrades.

FEATURES
  • 12mm push-fit to 3/8" NPT male thread
  • Quick tool-free installation
  • Leak-resistant connection design
  • Lightweight and corrosion-resistant plastic body
  • Suitable for potable water systems
  • Ideal for caravan & 4WD plumbing setups
Specifications

Brand: John Guest

Product Code: 800-02038

Size: 12mm tube x 3/8" NPT male

Type: Straight male adapter

Material: Engineering-grade plastic

Installation Information

Push-fit 12mm tubing into fitting and hand-tighten threaded end into compatible 3/8" NPT port. Use thread seal tape on NPT thread for best sealing.

Warranty Information

Covered by manufacturer warranty against defects in materials and workmanship

PICKUP OR SHIPPING

Available for in-store pickup or Australia-wide shipping

FAQ's

Q: What is this fitting used for?
A: It connects 12mm push-fit water line to 3/8" NPT threaded systems.

Q: Is it suitable for caravans and 4WD setups?
A: Yes, it is commonly used in off-grid water systems, caravans, RVs, and marine setups.

Q: Do I need thread tape?
A: Yes, PTFE tape is recommended on the threaded side for a proper seal.

Guides & Tutorials

A compact and reliable push-fit male straight adapter designed for clean transitions between 12mm tubing and 3/8" NPT threaded systems.

The John Guest Male Adapter (800-02038) is built for caravan, 4WD, RV, and off-grid plumbing setups where secure, leak-free connections are essential. It allows you to easily connect 12mm water line into threaded components such as pumps, filters, tanks, and manifolds.

Made from durable engineering-grade plastic, this fitting is lightweight, corrosion-resistant, and designed for long-term use in water systems. The push-fit design ensures fast installation with no tools required, making it ideal for both new builds and system upgrades.

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