Xspc petg fittings are designed for 1410mm petg tubing the fittings have two push seals and an additional compression seal for a safe and secure connection see more at wwwxs pccompetg tubefittingsg14 to 1410mm petg triple seal black chromesthashfih2kjhydpuf triple o ring seal black chrome finish for 10mm id 14mm od petg tubing g14prime thread easy tool free installation