Sea Frogs Optical Acrylic Spare Spheres

SKU: SFSPHRE4
$60.00 USD
$60.00 USD
$60.00 USD
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Variant 4''

Clear Vision. Every Dive.

Sea Frogs Spare Optical Acrylic 4" Sphere

Optical Acrylic | Spare | 4''

Keep your 4" dome port performing like new. The Sea Frogs optical acrylic spare sphere is a precision replacement for the 4" sphere used in the Salted Line V0 and Sea Frogs Wide Angle W0 dome ports — so a scratch or scuff doesn't have to end your shoot.

Swap out a scratched or damaged 4" sphere in minutes. Made from the same optical-correct acrylic as the original, this replacement sphere restores full image quality to your dome port without the need to replace the entire unit. Compatible with the KitDive Salted Line V0 4" Acrylic Dome Port and the Sea Frogs Wide Angle Correctional Wet W0 4" Acrylic Dome Port (67mm round adapter).

Compatible with KitDive Salted Line V0 4" Acrylic Dome Ports and Sea Frogs Wide Angle Correctional Wet W0 4" Acrylic Dome Ports (67mm Round Adapter).

Frequently Asked Questions

How do I know if I need to replace my sphere? +
Common signs include visible scratches, chips, crazing (fine surface cracking), or cloudiness that affects image sharpness. Minor surface marks can sometimes be polished out, but deep scratches or cracks that show up in photos are best fixed with a replacement sphere.
Is the spare sphere compatible with my dome port? +
This {4" / 6" / 8"} sphere is designed for {specific ports / all Meikon, Sea Frogs and Salted Line {6" / 8"} acrylic dome ports}. If you're unsure whether your port is compatible, contact us with your dome port model or SKU and we'll confirm.
Do I need any tools to replace the sphere? +
No special tools required. The sphere is designed for a straightforward swap — unscrew or unclip the old sphere, seat the new one, and reassemble. Refer to your dome port's documentation for the exact steps.
Is the replacement sphere the same optical quality as the original? +
Yes. It uses the same optical-correct acrylic as the original sphere supplied with your dome port, so image quality, sharpness and colour transmission are identical.
Will this sphere fit a glass dome port? +
No. This is an acrylic sphere and is only compatible with acrylic dome ports of the matching diameter. Glass dome ports use a different construction and are not interchangeable.
Q: Can I use this sphere as a spare to take on a dive trip? +
A: Absolutely — keeping a spare sphere in your dive kit is a great idea, especially on liveaboards or remote locations where replacements aren't available.

Specifications

Materials:

  • Optical Correct Acrylic

Package Includes

  • Sea Frogs Spare Optical Acrylic 4" Sphere ×1

Please Note: Camera and lens not included with the housing.

Disclaimer:

Every effort has been made to ensure that the descriptions and images provided are accurate and up-to-date. However, occasional errors may occur, and product features, specifications, or appearances may change without notice. We recommend verifying any details that are critical to your purchasing decision.