Blue Fireball SCT Female Thread to SCT Male & M48 (2" Filter) Female Thread Adapter
Stock count is accurate & shown in real time.
- This item is out of stock.
- Sign up for back-in-stock alerts to be notified when this item becomes available.
- This item is out of stock.
- We have no ETA from the manufacturer at this time.
- Sign up for back-in-stock alerts to be notified when this item becomes available.
Lower 48 States:
Orders over $50 ship free within the Lower 48 using a carrier and service we select based on your items and delivery location. Faster shipping options may be available at checkout.
U.S. Outside the Lower 48 (AK, HI, PR):
Free shipping on orders over $50 applies to many—but not all—items. Add items to your cart and enter your ZIP code to see available shipping options and any costs.
International Orders:
Free shipping does not apply to international orders. You’ll see available shipping options and costs during checkout. Some items can’t be shipped internationally due to size or manufacturer restrictions. Duties, taxes, brokerage fees, and tariffs are not included and are the customer’s responsibility.
Need to connect SCT and M48 threaded astronomy accessories? This Blue Fireball adapter might just be what you need. It has an SCT female thread (2"x24tpi) on one side. On the other side, it has an SCT male thread (2"x24tpi) as well as a standard 2" astronomy filter female thread (M48x0.75) inside it. Made of black anodized aluminum. Manufacturer part number: C-06.
Specifications:
Total thickness = 8mm
Maximum diameter = 55mm
Length of SCT female thread = 3mm
Length of SCT male thread = 2.2mm
Length of M48 female thread = 2.2mm
Important Notes:
- Note that this adapter has a very short female SCT thread. This is not suitable to use with SCT focal reducers that have a significant unthreaded lip before the threads start. Please check the threads on your accessory before purchase to ensure that this adapter will meet your needs.
- Please note that you can use EITHER the SCT male thread on one side OR the M48 female thread on the same side. You cannot use both threads simultaneously, for example, to attach a 2” filter in an SCT chain. It will simply not work since the outside diameter of a 2" filter cell is exactly the same size as the SCT thread. If you attach a 2" filter to this adapter, the SCT male thread is no longer accessible/usable.
Note: Knurl pattern may differ than what is pictured above. This is cosmetic only.
Other Information
- Country of Manufacture: China
Need to connect SCT and M48 threaded astronomy accessories? This Blue Fireball adapter might just be what you need. It has an SCT female thread (2"x24tpi) on one side. On the other side, it has an SCT male thread (2"x24tpi) as well as a standard 2" astronomy filter female thread (M48x0.75) inside it. Made of black anodized aluminum. Manufacturer part number: C-06.
Specifications:
Total thickness = 8mm
Maximum diameter = 55mm
Length of SCT female thread = 3mm
Length of SCT male thread = 2.2mm
Length of M48 female thread = 2.2mm
Important Notes:
- Note that this adapter has a very short female SCT thread. This is not suitable to use with SCT focal reducers that have a significant unthreaded lip before the threads start. Please check the threads on your accessory before purchase to ensure that this adapter will meet your needs.
- Please note that you can use EITHER the SCT male thread on one side OR the M48 female thread on the same side. You cannot use both threads simultaneously, for example, to attach a 2” filter in an SCT chain. It will simply not work since the outside diameter of a 2" filter cell is exactly the same size as the SCT thread. If you attach a 2" filter to this adapter, the SCT male thread is no longer accessible/usable.
Note: Knurl pattern may differ than what is pictured above. This is cosmetic only.
Need to connect SCT and M48 threaded astronomy accessories? This Blue Fireball adapter might just be what you need. It has an SCT female thread (2"x24tpi) on one side. On the other side, it has an SCT male thread (2"x24tpi) as well as a standard 2" astronomy filter female thread (M48x0.75) inside it. Made of black anodized aluminum. Manufacturer part number: C-06.
Specifications:
Total thickness = 8mm
Maximum diameter = 55mm
Length of SCT female thread = 3mm
Length of SCT male thread = 2.2mm
Length of M48 female thread = 2.2mm
Important Notes:
- Note that this adapter has a very short female SCT thread. This is not suitable to use with SCT focal reducers that have a significant unthreaded lip before the threads start. Please check the threads on your accessory before purchase to ensure that this adapter will meet your needs.
- Please note that you can use EITHER the SCT male thread on one side OR the M48 female thread on the same side. You cannot use both threads simultaneously, for example, to attach a 2” filter in an SCT chain. It will simply not work since the outside diameter of a 2" filter cell is exactly the same size as the SCT thread. If you attach a 2" filter to this adapter, the SCT male thread is no longer accessible/usable.
Note: Knurl pattern may differ than what is pictured above. This is cosmetic only.
Other Information
- Country of Manufacture: China
| Free Shipping Graphic | Free US Shipping |
|---|---|
| Hide Found a better Shipped Price on Frontend? | No |
Blue Fireball SCT Female Thread to SCT Male & M48 (2" Filter) Female Thread Adapter


















