Safety Data Sheets
Choice R-134A
Choice R-22
Choice R-410A
Choice R-420A
Choice R-421A
Choice R-421B
Product Literature
Product Brochure
Retrofit Guidelines
Technical Bulletin-Comparative Analysis
Technical Bulletin - Mass Flow
Pressure-Temperature Chart
Pressure Empalthy Chart
Industry Bulletins
Johnson Controls R-421A Approval
Coastline-Baker R-421A Case Study