Groco Bronze 45 Degree 3/4 Inch NPT Pipe to Hose Adapter PTHD-750

The Groco PTHD-750 is a bronze 45 degree pipe-to-hose adapter fitting built for marine plumbing and thru-hull applications. It connects a 3/4 inch NPT threaded pipe fitting to a 3/4 inch hose barb, allowing a smooth 45 degree transition between rigid pipe and flexible hose without adding a straight coupler and a separate elbow. The bronze construction is suited to below-waterline and other wet marine environments where long-term corrosion resistance matters more than on standard plumbing fittings.

This adapter is commonly used with thru-hull fittings, seacocks, strainers, and other below-waterline plumbing where a compact, angled connection point is needed. The barbed hose end is sized for 3/4 inch marine hose, and the NPT pipe end threads directly into standard 3/4 inch NPT ports. It ships as a single piece, ready to install with appropriate hose clamps on the barb end.

Specifications

• Brand: Groco
• Manufacturer Part Number: PTHD-750
• Product Type: 45 Degree Pipe to Hose Adapter
• Pipe Connection: 3/4 inch NPT
• Hose Connection: 3/4 inch hose barb
• Connector Type: Barb, Elbow
• Thread Type: NPT
• Material: Bronze
• Dimensions: 4 x 3 x 1 inches
• Weight: 0.25625 pounds
• UPC: 742985161917
• Number of Pieces: 1

Frequently Asked Questions

What does the Groco PTHD-750 connect? The Groco PTHD-750 connects a 3/4 inch NPT threaded pipe to 3/4 inch hose at a 45 degree angle, letting one fitting handle both the pipe threads and the hose barb connection.

Is the PTHD-750 made of bronze or plastic? The PTHD-750 is a bronze fitting, which is the standard material choice for marine thru-hull and below-waterline plumbing connections.

What size hose fits the barb end of the PTHD-750? The barb end of the Groco PTHD-750 is sized for 3/4 inch marine hose.

What are the thread specs on the pipe end? The pipe end of the PTHD-750 has 3/4 inch NPT (National Pipe Thread) threads.

What is the angle of this fitting? The PTHD-750 is a 45 degree elbow adapter, transitioning pipe to hose at a 45 degree bend rather than straight or 90 degrees.

How much does the PTHD-750 weigh? The Groco PTHD-750 weighs 0.25625 pounds.

What are the overall dimensions of the PTHD-750? The PTHD-750 measures 4 x 3 x 1 inches.

Do I need a hose clamp to install the PTHD-750? Yes, since the PTHD-750 has a barbed hose end, a hose clamp is needed to secure the hose onto the barb; the pipe end simply threads into a 3/4 inch NPT port.

How many pieces come in the package? The Groco PTHD-750 ships as a single piece (quantity of 1).

What kind of applications use the PTHD-750? The PTHD-750 is used in marine plumbing setups such as thru-hull fittings, seacocks, and strainers where a pipe needs to transition to hose at an angle.

What is the UPC for the Groco PTHD-750? The UPC for the Groco PTHD-750 is 742985161917.