DIVEVOLK Expansion Clamp for SeaTouch 4 Housing - Includes Red

In this review the DIVEVOLK Expansion Clamp for SeaTouch 4 housing is evaluated for underwater shooters who need a durable mounting solution and simple color correction. The bottom line is that this kit combines a CNC machined aluminum clamp with two 67mm color filters to improve underwater color and mounting versatility. It is best for divers using the SeaTouch 4 smartphone housing who want a solid clamp with multiple attachment points and quick filter options for blue or green water. The review focuses on build quality, compatibility, and practical use underwater.

Key Features

• CNC aluminum clamp: Machined from aerospace aluminum alloy for a secure, corrosion-resistant mount that holds the SeaTouch 4 housing firmly during dives.
• Multiple mounting points: Three M6 mounts on top and three 1/4 in mounts on the bottom allow attachment of video lights, trays, or handles for flexible rigging.
• Red 67mm filter: Enhances contrast in blue water to restore warm tones and improve subject color for clearer underwater images.
• Purple 67mm filter: Corrects color in green water by boosting contrast and producing more natural-looking tones on subjects.
• Compact kit packing: Ships with one clamp and two 67mm filters so users can start shooting with both blue- and green-water correction without extra purchases.

Who It's For

This accessory is aimed at freedivers, snorkelers, and underwater videographers who use the SeaTouch 4 smartphone housing and want a robust, metal clamp with multiple mounting options. It suits photographers who move between different water conditions and want the quick ability to switch between a red and a purple filter for color correction.

It is not ideal for casual users who only need a simple plastic clip or those who do not own the SeaTouch 4 housing, since compatibility and the clamp's value are tied to that housing and to divers who will use external lights or trays.

Pros & Cons

Pros

• Solid build quality from aerospace-grade aluminum gives confidence for repeated diving use.
• Versatile mounting pattern lets you attach lights, trays, or handles for more stable video.
• Two 67mm filters (red and purple) provide immediate color correction options for both blue and green water.

Cons

• Some users report the filter can slip on occasion, so periodic checking of the attachment is advisable.
• The kit is specifically designed for SeaTouch 4 housing, so it has limited use outside that ecosystem.

Specifications

Brand	DIVEVOLK
Compatible housing	SeaTouch 4 smartphone housing
Clamp material	CNC machined aerospace aluminum alloy
Top mounts	3 x M6
Bottom mounts	3 x 1/4 in
Filters included	1 x 67mm red, 1 x 67mm purple
Packing	1 clamp + red filter + purple filter

Our Verdict

The DIVEVOLK Expansion Clamp is a practical upgrade for SeaTouch 4 users who need a strong metal mount and quick color correction options. It delivers durable construction and flexible mounting points at a modest cost, making it good value for divers and videographers who swap between blue and green water. If you rely on the SeaTouch 4 housing and plan to add lights or trays, this clamp and filter set is worth considering.

Frequently Asked Questions

Will this clamp fit other housings?
The clamp is designed for SeaTouch 4 housing; it may not fit other housings securely without adapters.

What do the red and purple filters do?
The red filter restores warm tones in blue water, while the purple filter helps correct color in green water for more natural subject tones.

Are the mounts compatible with standard accessories?
Yes, the top M6 and bottom 1/4 in mounts accept common video lights, trays, and handles for underwater rigs.