Johnstone Supply Store in VENTURA webmaster1 May 15, 2021 Categories: HVAC WholesalersAddress 5960 VALENTINE ROADUNIT 3VENTURA, CA 93003USAContact Phone: (805) 658-6555Contact Store Review Store Your Name * Your Email * ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ Your Review *