(G) Valves with Muffler— The muffler reduces noise made by the air as it exhausts. Valves are made of PBT (polybutylene terephthalate) plastic. Maximum pressure is 145 psi.
does anyone know if the muffler affects performance very much?
and this might sound like a noobish question, but on this QEV, is the third hole for the pilot on the end that isn't shown?