A-20 Series Aluminum Bumper Guards
Enhance the durability and longevity of your mop sink with Stern-Williams Aluminum Bumper Guards (A-20 Series). Designed as an optional accessory for commercial mop sinks, these field-installed aluminum caps provide added protection to exposed edges—helping prevent damage from carts, buckets, and daily janitorial use.
Available in multiple sizes (24″, 32″, and 36″), the A-20 series is designed for easy installation and seamless compatibility with Stern-Williams mop sinks. Whether used in new construction or retrofit applications, these optional caps provide a practical solution for protecting high-use janitorial areas.
Product Numbers for the Aluminum Bumper Guards:
A-20-24
A-20-32
A-20-36
Durable aluminum construction for edge protection
Helps prevent chipping and damage to mop sink surfaces
Ideal for high-traffic janitorial environments
Designed for use with terrazzo mop sinks
Easy field installation for new or existing sinks
A-20-24 – 24″L
A-20-32 – 32″L
A-20-36 – 36″L



