This is a Locking Filter Disc Spacer, OEM Style Swimquip, made by Universal Filtration. The hub diameter is 2.375 inches and the thickness is 1 inch.
Spacers provide distance between filter discs to ensure proper flow and performance. Universal Filtration spacers are injection molded from 100% virgin, high-impact styrene or ABS to offer the strength and durability your OEM spin system requires.
