2" - 3" Conversion Kit Aquascape2" - 3" Conversion Kit Black Vinyl Tubing AquascapeBlack Vinyl Tubing Check Valve Assembly Units AquascapeCheck Valve Assembly Units Flexible PVC Pipe AquascapeFlexible PVC Pipe Kink-Free Pipe AquascapeKink-Free Pipe Plumbing Assembly 1 1/2" AquascapePlumbing Assembly 1 1/2"