Poolmaster 18" Aluminum Back Algae Brush w/Stainless Steel Bristles 20183 Perfect for tackling persistent algae in gunite pools, the Poolmaster 18-inch Algae Brush features a curved body design for superior strength and maximum cleaning coverage. Built as part of Poolmaster’s Premier Collection, this heavy-duty brush is engineered for performance and longevity, season after season. Key Features and Benefits Effectively removes stubborn algae stains in gunite pools with hard-surface finishes. Die-cast aluminum back and handle give superior durability and strength. Five rows of stainless steel bristles deliver aggressive cleaning power for hard surfaces. Curved body design improves reach and maximizes contact on pool walls and floor angles. Easy to attach to any standard pool telepole for convenience. Built for heavy-duty, season-long use as part of Poolmaster’s Premier Collection. Specifications Brand: Poolmaster (Premier Collection) Brush width: 18 inches Construction: Die-cast aluminum back and handle Bristles: Stainless steel (5 rows) Design: Curve-body for optimal surface contact For use: Gunite pools with hard-surface finish only Do not use on: Vinyl liner or fiberglass pools