Incorporates reliable Kontes 826610-0008 HI-VAC® valves, with size 15 o-ring connectors and size 116 FKM o-rings. This manifold is designed for grease-free operation. Forward-facing valves allow good access. Compact enough for ease of assembly within a fume hood, thereby protecting the researcher from noxious chemicals. Designed for use with adapters. It can easily be disassembled for cleaning if necessary. Replacement plug is with a size 110 Viton o-ring. Ports are spaced 75mm apart.