Description
GROCO 1-1/4" Stainless Thru-Hull Fitting | Boat Supply Store
This GROCO thru-hull fitting is engineered to prevent galvanic corrosion and withstand saltwater intrusion in demanding offshore conditions, ensuring reliable water intake or discharge. Constructed from premium #316 stainless steel, it features a 1-1/4" hose barb and a standard NPS thread for secure plumbing connections. Its UL Listed 647B certification guarantees adherence to rigorous safety and performance standards, making it ideal for bilge pumps, livewells, or raw water intakes on vessels navigating the Gulf Intracoastal Waterway.
Key Features
- Corrosion-resistant #316 stainless steel construction for extreme marine environments
- Durable #316 stainless steel for long-term reliability
- UL Listed 647B for assured quality and safety
- Standardized NPS thread for easy connection
- Secure 1-1/4" hose barb for robust plumbing
- Marine-grade materials designed for saltwater exposure
- Expertly crafted by GROCO for critical applications
- Essential component for bilge, livewell, or raw water systems
Specifications
| Product Specifications | |
|---|---|
| Brand | GROCO |
| Hose Barb Size | 1-1/4" |
| Thread Type | NPS |
| Material | #316 Stainless Steel |
| UL Listing | UL Listed 647B |
Who This Is For
Marine boat owners, builders, and maintenance professionals requiring a durable, corrosion-resistant thru-hull fitting for plumbing applications. Specifically designed for a 1-1/4" hose connection needing reliable performance in harsh marine environments.
How It Compares
| Feature | GROCO 1-1/4" Stainless Thru-Hull Fitting | Perko |
|---|---|---|
| Material | #316 Stainless Steel | Bronze |
| Hose Barb Size | 1-1/4" | 1-1/4" |
| Thread Type | NPS | NPT |
| UL Listed | Yes (647B) | No |
Common Concerns Answered
Why is the price higher than other thru-hull fittings?
The higher price point reflects the premium #316 stainless steel construction, offering superior corrosion resistance and longevity in harsh marine conditions compared to bronze or lower-grade stainless steel options, which is backed by a UL Listing for quality assurance.
Is the NPS thread compatible with all existing fittings?
NPS (National Pipe Straight) threads are standard for many marine plumbing applications, but specific thread pitch matching for highly specialized systems may require careful verification. However, NPS is widely accepted and ensures a secure, leak-proof seal when properly installed.
What is the overall durability of this thru-hull fitting?
Constructed from #316 stainless steel, this fitting is engineered for exceptional durability and resistance to galvanic corrosion, making it a long-term, reliable component for critical marine plumbing systems exposed to saltwater.
Frequently Asked Questions
What is the thread type of the GROCO Stainless Steel Hose Barb Thru-Hull Fitting?
The thread type is NPS (National Pipe Straight).
What material is the GROCO Stainless Steel Hose Barb Thru-Hull Fitting made of?
This thru-hull fitting is constructed from premium #316 stainless steel.
What is the hose barb size for this GROCO thru-hull fitting?
The hose barb size is 1-1/4 inches.
Is this GROCO thru-hull fitting UL listed?
Yes, this GROCO thru-hull fitting is UL Listed under classification 647B.
What is the NPS thread size for the GROCO HTH-1250-S?
The NPS thread size is not explicitly stated in the product specifications but is compatible with standard NPS fittings for a 1-1/4" hose barb.
