Gib-San Algaecide HD40 1L

Gib-San Algaecide HD40 – 1L
Powerful, non-foaming algae control for crystal-clear pool water.

Keep your pool water sparkling and algae-free with Gib-San Algaecide HD40, a high-performance, concentrated formula designed to both prevent and eliminate algae growth. Safe for use in all pool types—including saltwater systems—this non-foaming algaecide works quickly and effectively without clouding your water or affecting pH balance.

Whether you're opening your pool for the season, maintaining it through summer, or closing it for the winter, HD40 helps control green, yellow, and black algae with ease. Its long-lasting formula means fewer applications and more peace of mind.

Product Features:

• Concentrated 40% strength for superior algae control

• Effective against green, yellow (mustard), and black algae

• Non-foaming and won’t cloud water

• Safe for all pool surfaces and sanitizer types

• Helps prevent future algae blooms

• Ideal for routine maintenance or shock treatment

• 1L bottle – great for seasonal and weekly use

When to Use:

• At pool opening or closing

• Weekly as part of regular pool maintenance

• After heavy rain, hot weather, or high pool usage

• At first signs of algae growth

Why Choose Gib-San Algaecide HD40?
As a trusted Canadian pool care brand, Gib-San delivers reliable, professional-grade products backed by decades of industry experience. Algaecide HD40 is formulated for maximum effectiveness with minimal effort—so you can spend more time enjoying your pool and less time treating it.

Available now online and in-store at Gib-San Pool & Hot Tub Centre.
Protect your pool water from algae—shop Gib-San Algaecide HD40 today.