Surge Tank Access Ladder - 13 Rung - Stainless Steel filter-internal-diameter_4 inches (12) 8 1/2" x 5"

(12) 8 1/2" x 5" Anchor Studs

This is a Maytronics Ultra Fine Filter Cartridge with 50 microns

High quality laminated and UV stabilized coatings protect it from intense sunny days in the fall and spring

This depth marker states 3 FT and is printed with 6 inch letters

Other testing is listed below

Surge Tank Access Ladder - 13 Rung - Stainless Steel filter-internal-diameter_4 inches (12) 8 1/2" x 5"This is a Neptune Benson 13 Rung Surge Tank Access Ladder constructed of stainless steel. The ladder rails and mounting brackets are 1 4 inch thick. The rungs are 18 inches wide and they are spaced 12 inches apart. Mounting brackets are 2 1 2 x 1 4 inches. Mounting hardware is not included. It is recommended that 1 2 inch stainless steel hardware be used with the brackets.