Introducing the 4″ 300 RF Threaded Flange in Carbon Steel – a premium quality component designed for reliable performance in various piping applications. This flange is not only robust but also features a striking yellow zinc finish that enhances its durability and corrosion resistance, making it an excellent choice for both industrial and commercial use.
Key Features
Durable Carbon Steel Construction: Crafted from high-quality carbon steel, this threaded flange is engineered to withstand high pressure and extreme conditions, ensuring a long-lasting and dependable connection in your piping systems.
Yellow Zinc Dipped Finish: The yellow zinc coating not only provides an attractive appearance but also offers superior protection against rust and corrosion. This finish ensures that your flange maintains its integrity and performance even in harsh environments.
Standard 300 RF Design: Designed to meet the 300 RF (Raised Face) standard, this flange provides a reliable sealing surface that is compatible with a wide range of gaskets and piping systems, ensuring a secure and leak-free connection.
Easy Installation: The threaded design allows for straightforward installation, making it easy to connect to existing piping systems without the need for additional welding or complicated fittings. This feature saves you time and labor costs during installation.
Common Applications for 4″ 300 RF Threaded Flange
Piping Systems: Ideal for use in various piping systems, this flange is perfect for connecting pipes in water, gas, and oil applications, ensuring a secure and leak-proof joint.
Industrial Equipment: Suitable for industrial machinery and equipment, the flange provides a reliable connection point that can withstand the rigors of heavy-duty operations.
HVAC Systems: This flange is also an excellent choice for HVAC applications, where it can be used to connect ductwork and other components, ensuring efficient airflow and system performance.
Conclusion
The 4″ 300 RF Threaded Flange in Carbon Steel is the perfect solution for anyone seeking a durable, reliable, and easy-to-install flange for their piping needs. With its robust construction and protective yellow zinc finish, you can trust this flange to perform under pressure and in challenging environments.
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Shipping Countries:
United States (US)
Ready to ship in 1-3 business days
from United States (US)
Shipping Policy
To ensure your order is shipped safely and appropriately, we determine the shipping method based on weight, size, and handling requirements.
Parcel Shipments
Smaller items that meet standard carrier limits are shipped via common parcel carriers such as UPS, FedEx, or USPS. This is calculated for you automatically at checkout.
LTL Freight (Less-Than-Truckload)
Orders that:
Weigh over 150 lbs, or
Exceed parcel carrier size or dimensional limits
will ship via LTL freight.
LTL shipments are handled by third-party freight carriers and typically involve palletized delivery. Transit times and delivery scheduling vary depending on carrier availability, destination, and freight class.
Please note:
LTL deliveries often require a delivery appointment.
Liftgate service, limited access, or residential delivery may affect transit time and cost.
It is best to reach out to us before your purchase on items that exceed 150lbs or that are larger than 96 inches in any one direction in order to ensure that you get an accurate estimate on cost.
Full Truckload (FTL) / Specialized Freight
Large or specialized items—such as tanks, vessels, oversized equipment, or shipments requiring hazmat handling or oversized permits—are managed directly by Tri-State Supply.
These shipments may require:
Full truckload (FTL) transport
Oversized or overweight permits
Specialized carriers or equipment
Additional coordination prior to shipment
Because of this, processing and delivery timelines for full truckload or specialized freight are determined on a case-by-case basis. Our team will coordinate directly with you to confirm logistics before shipment. You will need to reach out to us for a quote. You may also arrange freight for your purchases. Loading fees, appointments, and more arrangements will still need to be agreed upon before something leaves our property.
Order Processing & Timing
Most in-stock orders are processed within 1–3 business days. Freight shipments—especially LTL and full truckload—may require additional time to schedule pickup and delivery.
Estimated delivery dates are provided as guidance and are subject to carrier and logistical factors beyond our direct control.
Questions Before You Order
If you are purchasing:
Large or heavy items
Freight-sensitive equipment
Job-site or residential deliveries
we strongly recommend contacting us before placing your order so we can help confirm the best shipping method and set clear expectations.
Tri-State Supply
Customer Support Hours
Monday–Friday, 8:00 AM – 5:00 PM CST
Please allow up to 24 business hours for a response.
Refund Policy
Tri-State Supply Corp
Return & Refund Policy
We want you to feel confident in every purchase from our store. As part of BranaBee, we follow the BranaBee Refund Policy (https://branabee.com/refund_returns/) and have added a few specifics to make returns as simple as possible.
1. Return Eligibility
We accept returns on new, unused items within 30 days of delivery, as long as the item is in a condition that allows it to be resold.
Items marked “As-Is” or “As-Is Where-Is” cannot be returned.
To qualify for a return, items must:
Be unused
Be in original or equivalent packaging
Be free from damage, installation marks, or modifications
Used or installed items are not eligible for return or refund.
2. How to Request a Return
To start a return:
Submit a return or refund request for your order.
If eligible, we will provide a return shipping label via email.
Once we receive and inspect the item, your refund will be issued to your original payment method.
3. Large, Heavy, or Freight-Shipped Items
Returns for large or freight items require special handling:
Our team will contact you to coordinate the return.
Return eligibility and logistics are handled case by case.
Timelines and costs may differ from standard parcel returns due to shipping requirements.
4. Non-Refundable Items
Used or installed items
Items returned after 30 days
Items damaged due to improper packaging or handling
5. Questions Before You Buy
For large or freight-shipped items, we recommend contacting us before ordering. This helps confirm specifications and return expectations.
For any other questions, reach out during business hours:
Monday–Friday, 8:00 AM – 5:00 PM CST
Please allow up to 24 business hours for a response.
✅ Bottom line: Our goal is to make your shopping experience smooth and worry-free. If you ever have a concern about a return, we’re here to help.
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