Description
GROCO 3/4" NPS/NPT Bronze Thru-Hull w/Nut | Boat Supply Store
This thru-hull fitting is engineered for boat owners requiring robust and adaptable plumbing connections in saltwater environments. Constructed from C83600 Bronze, it ensures exceptional corrosion resistance and longevity. The unique NPSM/NPT combination thread design accommodates a wider range of fittings, simplifying installations for various bilge pump or raw water intake applications. It is UL Listed 647B for verified safety and performance.
Key Features
- Unmatched Versatility with NPSM / NPT combination thread
- Superior Durability through C83600 Bronze construction
- Certified Reliability with UL Listed 647B
- Ready for Installation includes a secure nut (-W model)
- Broad Application Range available in sizes 1/2" to 5"
- Corrosion-Resistant material ideal for marine conditions
- Direct Replacement Option for existing thru-hull installations
- Trusted Brand Quality from GROCO
Specifications
| Product Specifications | |
|---|---|
| Size | 3/4" |
| Thread Type | NPSM / NPT Combination |
| Material | C83600 Bronze |
| Listing | UL Listed 647B |
| Includes | Nut |
Who This Is For
Marine boat owners, builders, and maintenance professionals requiring a durable, corrosion-resistant thru-hull fitting for plumbing applications. It is particularly suited for those needing compatibility with both NPSM and NPT threaded components.
How It Compares
| Feature | GROCO 3/4" NPS/NPT Bronze Thru-Hull w/Nut | Competitor |
|---|---|---|
| Thread Type | NPSM / NPT Combination | NPT, NPT |
| Material | C83600 Bronze | Bronze, Bronze |
| UL Listed | Yes (647B) | Null, Null |
| Size | 3/4" | 3/4", 3/4" |
| Includes Nut | Yes (-W model) | Yes, Yes |
Common Concerns Answered
I'm concerned about finding adapters for the NPSM side of this fitting.
While NPSM is a standard pipe thread, adapters are readily available. For common applications, standard NPT fittings will often thread directly into the NPSM side, providing a secure connection. If specialized adapters are required, marine plumbing suppliers typically stock them.
Is the price significantly higher than basic fittings?
The GROCO TH-750-W is priced competitively for its advanced features, including the dual NPSM/NPT thread and C83600 bronze construction. This premium material and versatile threading offer superior longevity and installation flexibility, justifying the investment over simpler, single-thread fittings.
What if I don't need the nut included with this model?
GROCO offers a 'L' version of this thru-hull fitting (e.g., TH-750-L) which does not include the nut, potentially offering a cost saving if you are reusing an existing nut or prefer to source one separately.
Frequently Asked Questions
What is the thread type of the GROCO TH-750-W thru-hull fitting?
The GROCO TH-750-W features a combination NPSM (National Pipe Straight Mechanical) and NPT (National Pipe Taper) thread.
What material is the GROCO TH-750-W thru-hull fitting made of?
This fitting is constructed from high-quality C83600 Bronze, known for its excellent marine corrosion resistance.
Is the GROCO TH-750-W thru-hull fitting UL listed?
Yes, the GROCO TH-750-W is UL Listed under rating 647B.
What sizes are available for GROCO thru-hull fittings like the TH-750-W?
The TH-750-W model is available in standard sizes ranging from 1/2 inch up to 5 inches.
What is the difference between the -W and -L models of GROCO thru-hull fittings?
The '-W' suffix indicates that the thru-hull fitting includes a nut for installation (e.g., TH-750-W), while the '-L' suffix indicates that the fitting is supplied without a nut (e.g., TH-750-L).
