Description
1-1/2" Water Thief, NPSH Threaded Connections, Male Garden Hose Thread Outlet, Nylon, High-Visibility Yellow
The NPSH water thief is a nylon inline tee that adds a garden hose outlet to any 1-1/2" NPSH fire hose line. It threads between two hose sections using standard NPSH couplings, a common threading used on fire hose and pump connections across many North American municipalities. Water flows through the main hose in either direction while the garden hose branch runs independently from the male GHT outlet.
Municipal fire departments, wildland fire crews, and industrial facilities use this water thief when they need a quick auxiliary garden hose line. The GHT branch handles spot fire suppression, mop-up, equipment rinse, and sprinkler supply without interrupting flow through the main hose. The high-visibility yellow nylon construction is lightweight, corrosion-resistant, and easy to spot on the ground during operations.
Key Features
- 1-1/2" Male and Female NPSH Connections, Standard Fire Hose Thread. Threads directly into any 1-1/2" NPSH hose lay with no adapters, reducers, or coupling conversions.
- Male Garden Hose Thread (GHT) Outlet, Universal Compatibility. Accepts any standard garden hose, sprinkler head, or GHT accessory for auxiliary water supply from the main fire hose line.
- Nylon Construction, Lightweight, Corrosion-Resistant. This nylon water thief weighs a fraction of brass or aluminum alternatives and holds up in wet, dirty field conditions.
- Bidirectional Flow, Inline Installation. Water flows in either direction through the main ports. Crews splice the fitting anywhere in a hose lay without checking flow orientation.
- High-Visibility Yellow Finish. Stands out on the ground, in brush, and in low-light conditions for fast location and retrieval during fire operations.
Specifications
| Product Type | NPSH Water Thief |
| Material | Nylon |
| Color | High-Visibility Yellow |
| Inlet Connection | 1-1/2" Male NPSH |
| Outlet Connection | 1-1/2" Female NPSH |
| Auxiliary Outlet | Male Garden Hose Thread (GHT) |
| Flow Direction | Bidirectional |
| Shut-Off Valve | Not Included (sold separately) |
| Application | Firefighting, Mop-Up, Water Distribution |
| SKU | G80WT |
Applications
- Municipal fire departments splice this NPSH water thief into a charged hose line to run a garden hose during mop-up and overhaul.
- Wildland fire crews use this water thief firefighting accessory for spot fire suppression with a smaller, more maneuverable garden hose.
- Fire equipment procurement officers stock this water thief as a standard fitting for any apparatus running 1-1/2" NPSH hose.
- Industrial facilities add this water thief to fire protection hose lines for wash-down, rinse stations, and equipment cooling.
- Parks and recreation departments connect this water thief firefighting fitting to a hose line for campground water distribution and controlled burn mop-up.
How to Add a Garden Hose to a Fire Hose
A water thief is a fire hose to garden hose adapter that connects inline on the main hose line. Follow these steps to install it on a 1-1/2" NPSH hose lay.
- Break the hose lay. Disconnect the NPSH hose at the point where you want the garden hose branch. Unthread the coupling by hand.
- Thread on the water thief. Connect the male NPSH port to one hose section and the female NPSH port to the other. Hand-tighten both connections.
- Attach a garden hose. Thread a standard garden hose onto the male GHT outlet by hand.
- Add a shut-off valve. The GHT outlet has no built-in shut-off. Thread a garden hose shut-off valve onto the outlet for on/off control without disconnecting the hose.
- Charge the line. Open the water supply. Water passes through the main hose while the garden hose branch runs independently from the GHT outlet.
NPSH Water Thief for Sale from Cleanflow Utility Supply Company
Cleanflow Utility Supply Company ships this nylon water thief across Canada and the USA with free shipping on orders over $199. Returns are accepted within 30 days. Email info@cleanflow.ca for questions.
For a complete hose setup, add a garden hose shut-off valve for flow control on the GHT outlet and browse the full fire hose and fittings collection.
Frequently Asked Questions
What Is a Water Thief in Firefighting?
A water thief is an inline tee that adds a garden hose outlet to a fire hose line. It branches off a smaller line for mop-up and spot fire suppression while the main hose keeps flowing. This model uses NPSH threads, common on fire hose and fire department connections.
What Is NPSH Thread on a Fire Hose?
NPSH stands for National Pipe Straight Hose. It is a straight-thread coupling used on fire hose, pump suction ports, and fire department connections across many municipalities in the United States and Canada. NPSH connections screw together by hand, unlike forestry instantaneous couplings that connect with a quarter turn.
Can You Connect a Garden Hose to a Fire Hose?
A water thief is the most common fire hose to garden hose connection in fire service. Thread it inline on a 1-1/2" NPSH hose line, and the GHT outlet accepts any standard garden hose, sprinkler head, or nozzle.
Do You Need a Shut Off Valve for a Water Thief?
This water thief has no built-in shut-off on the garden hose outlet. Water flows through the GHT branch whenever the main hose line is charged. Thread a garden hose shut-off valve onto the outlet for on/off control at the hose.
What Is the Difference Between NPSH and Forestry Instantaneous Couplings?
NPSH couplings screw together with threads. Forestry instantaneous couplings connect with a quarter turn and have no male or female orientation. Departments with NPSH hoses need an NPSH water thief. Departments with forestry instantaneous hose need a forestry instantaneous water thief.















