Groco PTHC-1000 90 Degree Bronze Pipe-to-Hose Adapter, 1 Inch NPT x 1 Inch Hose

The Groco PTHC-1000 is a 90 degree bronze pipe-to-hose adapter designed to connect a 1 inch NPT pipe fitting to 1 inch ID hose at a right angle, making it a common choice for routing plumbing and cooling lines in tight spaces where a straight fitting will not fit. It is machined from C83600 bronze for corrosion resistance in marine and wet environments, and it is UL Listed 647B for standard flow applications. The 90 degree elbow design lets installers change hose direction without adding a separate fitting or extra hose length, simplifying runs through bulkheads, engine compartments, and thru-hull plumbing.

The adapter terminates in a barbed hose end measuring 1.38 inches in length, giving the hose clamp adequate surface area to seat securely, while the opposite end threads onto standard 1 inch NPT pipe. Important: this fitting is not intended for use in potable water systems, as C83600 bronze fittings are not NSF-61 compliant for drinking water applications. It is best suited for non-potable marine plumbing such as raw water intake, drainage, or cooling circuits.

Specifications

• Brand: Groco
• Manufacturer Part Number: PTHC-1000
• Type: 90 Degree Pipe-to-Hose Adapter
• Material: Bronze (C83600)
• NPT Pipe Size: 1 inch
• Hose Size: 1 inch
• Hose Barb Length: 1.38 inches
• Thread Type: NPT
• Flow Type: Standard Flow
• Certification: UL Listed 647B
• Color: Bronze
• Product Dimensions: 6.25 x 6.25 x 6.5 inches
• Weight: 0.4375 pounds
• Potable Water Use: Not intended for potable water systems (not NSF-61 compliant)

Frequently Asked Questions

What sizes does the Groco PTHC-1000 connect? The Groco PTHC-1000 connects a 1 inch NPT pipe thread to 1 inch ID hose through a 90 degree bronze elbow adapter.

Can the PTHC-1000 be used for drinking water plumbing? No. The PTHC-1000 is made from C83600 bronze, which is not NSF-61 compliant, so it is not intended for use in potable water systems.

What material is the Groco PTHC-1000 made from? It is machined from C83600 bronze, a corrosion-resistant alloy commonly used in marine plumbing fittings.

Why would I choose a 90 degree adapter instead of a straight fitting? A 90 degree adapter like the PTHC-1000 changes hose direction at the fitting itself, which helps route hose through tight spaces such as bulkheads or engine compartments without adding extra hose length or a separate elbow.

How long is the hose barb on the PTHC-1000? The hose barb end of the PTHC-1000 measures 1.38 inches in length, providing surface area for a secure hose clamp connection.

Is the PTHC-1000 UL listed? Yes, the Groco PTHC-1000 is UL Listed 647B.

What is the flow rating of this adapter? The PTHC-1000 is rated for standard flow applications.

How much does the Groco PTHC-1000 weigh? The PTHC-1000 weighs 0.4375 pounds.

What thread type does the PTHC-1000 use? The pipe end of the PTHC-1000 uses NPT (National Pipe Thread) threading in a 1 inch size.

What color or finish does the PTHC-1000 come in? The Groco PTHC-1000 has a bronze finish, consistent with its C83600 bronze construction.

Is the PTHC-1000 sold as a single piece? Yes, the PTHC-1000 is sold as one adapter fitting per unit.