7" International 4A Center Fin – Solid Bright Blue Pro Glass

Depth: 7” Base: 5.3”

The 7" International 4A Center Fin in solid bright blue Pro Glass is a medium-depth, balanced template designed for controlled turning and reliable hold across a wide range of surfboard shapes.
Its neutral outline and moderate rake provide predictable response when trimming, stepping back for turns, or stabilising a 2+1 configuration. The solid Pro Glass layup delivers consistent flex characteristics and long-term durability suited to regular surf use.

Key features

• 7" depth for balanced manoeuvrability and control

• International 4A template with neutral rake and smooth release

• Solid bright blue Pro Glass construction for strength and consistent flex

• Suitable for single fin or 2+1 surfboard configurations

• Corrosion-resistant screw and plate compatibility

Ideal for

• Mid-length and compact longboard surfboards

• Riders seeking predictable turning without excessive looseness

• Everyday surf conditions from small to moderate waves

• 2+1 setups requiring stable centre fin control

Why choose this product

This fin provides a reliable middle ground between pivot and drive, making it suitable for varied board designs and surf conditions.
The Pro Glass construction ensures dependable flex behaviour over time, while the International 4A template remains a proven reference for balanced single-fin performance.

Compatibility

Designed for surfboards fitted with a sliding center fin box using standard screw and plate installation.

Frequently Asked Questions

Is a 7" centre fin large enough for a longboard?
A 7" fin is typically suited to mid-length boards or as the centre fin in a 2+1 longboard setup rather than a full traditional single-fin log.

What riding feel does the International 4A template provide?
It offers balanced pivot and hold, allowing controlled turns without feeling overly stiff or overly loose.

Is Pro Glass durable for regular surfing?
Yes. Pro Glass fiberglass construction is widely used for its strength, predictable flex, and resistance to everyday wear.

Summary

Balanced 7-inch International 4A center fin in solid bright blue Pro Glass, designed for mid-length and 2+1 surfboards. Provides controlled turning, reliable hold, and durable everyday performance in boards using a sliding center fin box.

We include:

Free Delivery: Everywhere in Australia.

Tracking: Quick & easy online tracking on all fins. 

Peace of Mind: All our fins are insured against loss in transit.

Prompt Australian Dispatch: All items are sent from stock held in Sydney on the same or next business day.

Returns: 30-day, no questions asked returns, for unused full price items.

No More to Pay: No surcharges added at the checkout.

Express Shipping just $10 per order at the checkout.