Reinforced Polypropylene plastic irrigation valves. Plasson's large variety of irrigation valves, such as the 1/4 Turn Valves which are now also rated PN10 - the perfect solution for your agricultural needs! - Can be serviced in line - no need to remove valve. - Extra tough high impact polypropylene body - frost proof. - Maximum 10 bar working pressure (145 psi). - Coupling connection ends for Metric poly - can be converted to Rural poly. - Special price deals for irrigation resellers available.