Newloc® push-to-connect fittings come in acetal copolymer and brass. Both are stocked in popular sizes and styles and allow quick connections to rigid and semi-rigid tubing such as nylon, polypropylene, and polyethylene. The fittings deliver instant, leak-proof connections with no flow restrictions, as well as a full vacuum rating (29.9 in/Hg). They work with rigid and semi-rigid tubing but may also be used with softer materials depending on the tubing’s durometer or by using a tube support. Plastic (acetal) Newlocs are light weight and available in inch and metric sizes. Durable Brass versions handle high temperatures to 200° F (93° C), and their pressures are limited only by the working pressure of the plastic tubing being used. Pulling on the inserted tubing or increasing the pressure actually tightens the fitting’s seal.