Advance Tabco Prestige 24 inch Series NSF Rear Fill In Unit, 26 inch -- 1 each.The fillers are measured by the degree of the angle in the bar you are trying to fill. The 90 degree fillers are designed for 90 degree turns and corners in the bar layout. These are the only fillers supplied with a leg channel for additional support. Fillers are installed by mounting them to the adjacent pieces of equipment they fit between. All fillers are offered with a flat top and some models offer corrugated tops with a drain. For custom fillers please consult the factory for pricing and availability.