NOTE: This listing is for 1 calibration tool. I have photographed both of them that I have as to show what you might receive.

Quantity 1 - Gastite 6A CSST Sizing & Calibration Tool (3/8" Size / DNH-6). This listing is for one (1) individual authentic Gastite 6A Calibration Sizing Tool (3/8-inch nominal). This is an essential heavy-duty hand tool replacement for professional plumbers, HVAC technicians, mechanical contractors, and gas fitters who work with flexible gas piping systems.

I also have other sizes please message me if you have any questions or for a discount if purchasing multiples or a set.

- Manufacturer: Gastite

- Tool Size / Model: 6A (DNH-6 Equivalent)

- Nominal Pipe Size Compatibility: 3/8” (3/8 Inch) CSST Conduit

- Material: Machined Carbon Steel with Knurled Traction Grip

Condition:

- Cosmetic Condition: Shows typical wear from commercial plumbing use, including a bit of a patina and minor oxidation/rust on the finish. Though structurally perfect, 100% functional, and ready to go straight into a service truck or tool bag. The critical 3/8" sizing nose, threading, and calibration rings are clean, true, and free of any physical deformation or drops.

- Please review the photos for the best description of the item.

🚢FAST SHIPPING🚢!!! Almost always next day and possibly even same day if you message to confirm and the item is purchased early enough in the day.

Multi-Item Discount:

I have multiple individual Gastite tools available (including 8A, 11B, and 16A). If you are looking to purchase multiple pieces to replace missing items in your kit, please contact me or request a total invoice before paying so I can combine your shipping costs.

System Compatibility:

This 6A anvil tool is engineered specifically for preparing, sizing, and calibrating the inner diameter of Corrugated Stainless Steel Tubing (CSST). It is fully compatible with Gastite FlashShield, FlashShield+, XR2, and XR3 fitting systems. This tool functions alongside your jacket stripping tools, tubing cutters, and termination fitting hardware to ensure a code-compliant, leak-free seal on propane (LP) or natural gas appliance runs.