Neptune Systems Apex A3 Jr Trident Package - Neptune Systems $971.85 This Package Includes: 1x - Apex A3 Jr Controller System 1x - Apex TRIDENT - Automatic Water Tester w/2 Month Reagents & Calibration Fluids 1x - 24VDC 36W Apex Power Supply for DOS & FMM (PS-36-US) - Neptune Systems The A3 Jr is a... Add to Cart