Laguna Y-Connector (with ¥"/1"/1‰" Click-Fit Couplers). Laguna Y-connector, supplied with 3 click-fit connectors, is a universal flow adapter. This allows for the connection of any combination of 20mm, 25mm & 32mm flexible piping and comes complete with quick release, Click-Fit couplings. The flexible pipe will need to be secured with suitable hose clips.