H-Series FD Low NOx Ignitor Kit filter-width_8 7/8 inches The Rock Solid Anchor features

The Rock Solid Anchor features an innovative bronze wedge assembly that expands and exerts continuous

They are designed to replace standard 24 inch square 2 x 2 grid cover assemblies that have four 12 inch covers with 11-1/4 inch center-to-center screw hole measurements with 3/4 inch deep existing frames

The non-slip backstroke wedge measures 25

The 1 inch spouts are 3

Two (2) Stainless Steel lock washers

H-Series FD Low NOx Ignitor Kit filter-width_8 7/8 inches The Rock Solid Anchor featuresThis is an Ignitor Kit for the Hayward Universal H Series Low NOx Heaters (FD Series). Designed for these H Series pool heater models: H150FD, H200FD, H250FD, H300FD, H350FD, H400FD.